Fun With Science  /  Globe Deconstruction

Globe Deconstruction — A Claim-by-Claim Review

Twenty-four checkable claims, mapped onto the 500-page draft they come from — what each one says, where it sits, and whether we have answered it.

This is an in-progress review of Globe Deconstruction?, a prerelease book by Levi Miller, and of the argument presented at shapedebate.com, which Miller runs with Alex Kampf. The book describes its position as geocentric flat-earth and treats the two labels as one package — its three headline claims are printed as “Geocentric flat-Earth claim #1/2/3”, and p. 109 asks “does he not know that ‘flat Earth’ includes geocentrism?” What it does not do is defend the standard flat-earth apparatus: the world-encompassing ice wall is “clearly just lazy” (p. 40), replacing gravity with relative density is “plain wrong!” (p. 57), and it tells flat-earthers to stop arguing from religious texts (p. 197). It is often sharper about flat-earth argument than its critics are. That credit is worth being precise about, because the precision is itself a finding. What is a genuine break from the genre is the method — falsification-first, a speculation fence around the weakest material, and one experiment he built and ran himself. What is not a break is the exhibit list: the Chicago time-lapse, the P900 recoveries, the Rampion footage, the Action Lab chamber, the one-fake-voids-all rule and the moon-tilt claim are the standard catalogue of the last fifteen years, largely third-party footage, arriving with prior published answers. His eschewals are aimed at the genre’s explanatory apparatus — ice wall, density, scripture — and not at its evidence. Provenance refutes nothing, and we never use it as if it did; what it changes is whose burden it is to engage the answers that already exist. The book also declines, deliberately, to advance a positive model at all — “falsification is independent of replacement” — which is a harder position to answer than the one usually attributed to it. That is true of the book and is no longer true of the project. The launch video for it carries, and its author endorses as representing his own thinking, a geocentric introduction by another presenter, Mark Knight, that does commit to specifics: a near sun on a spiralling 24-hour track at a stated altitude, a self-luminous moon at a stated rate, a star field at a stated altitude turning in 23 h 56 m 4 s. Under this review’s own rule — that the burden attaches wherever a positive reading is offered — the endorsement moves that burden, and the endorsed model’s own admissions come into scope with it. We are working through that material now and will cite it by timestamp once each quotation has been checked against the audio rather than against an automatic transcript. The site's stated posture is “no religions, no beliefs, no biases, no assumptions,” and its authors invite exactly this sort of scrutiny. We are taking them at their word.

The finding so far

The book’s method is falsification-first, and we have graded seventeen of its twenty-four claims exactly as he states them. The number that are falsifications — a prediction the globe actually makes, in a regime where it claims to hold, measurably failing — is zero. Ten of the seventeen are refuted by a specific measurement, and four are observations that are real and that the mainstream model already predicts. What almost none of them turn on is whether he is right about what he saw. That is a running score, it is kept by a rubric with a state he can win, and it will change the moment something earns it.

The book asks two dozen versions of one question: does any single classical proof of the globe survive on its own? Often the honest answer is — not as cleanly as the textbook told you. Where his observations are real we concede them and measure them, and several pages here do exactly that. But the project has the argument backwards. The globe is not a stack of independent proofs any one of which carries the weight; it is one model that has to fit every observation at once, with one sun, one atmosphere, one optics. The book takes each observation in its own chapter and finds a separate explanation for it — and some of those explanations cannot both be true. Light has to travel straight across tens of miles of sea for the wind-farm and long-lake photographs to mean what he says they mean, and cannot travel straight across long distances of atmosphere at p. 202, where that is denied outright. Those are the same path length, in the same air, answering to opposite optics.

How this review works

Each page answers one specific claim, as its author actually stated it — not a summary, not a weaker version, and not the general genre it belongs to. Where the underlying observation is real, or the arithmetic is right, we say so first and prominently, because a review that cannot concede anything is not a review. Where we think the reasoning fails, we show the working rather than asserting it, and we use the author's own figures wherever he supplies them. Where we genuinely do not know, we say that too. Every page ends with tests that would settle the question — and they have to be tests that could go against us, or they are not worth proposing.

The book charges the globe side with demanding laboratory control it never supplies itself, and on that charge it is right; our page on it concedes the point before anything else, and names an instance of our own double standard found while writing it. We take the same standard in return: where this review has published something wrong, the correction goes up with attribution rather than being quietly swapped out.

Why answer this at all

Most published responses to this material argue with a caricature. They answer the loudest version of a claim rather than the version actually made, and they treat any concession as a loss — which is precisely why they persuade nobody who wasn't already persuaded. The book notices this and says so, repeatedly and fairly.

So the standard here is higher than usual. If a claim is right, it gets conceded in full. If a claim is wrong, the demonstration has to be checkable by the reader without trusting us — public data, stated arithmetic, named sources. Several of these pages concede substantial ground: the curvature arithmetic in the pond test is correct, the perspective-compression physics in the angular-resolution chapter is real, Foucault pendulums genuinely are difficult to run well, and the book is unusually candid when its own evidence is thin. None of that is a problem for the review. It is what makes the rest of it worth reading.

We are in correspondence with the author, who has been generous about receiving criticism. Corrections are welcome and will be published: if any specific claim on any of these pages is wrong, tell us which one and why, and the correction goes up with attribution.

Two things this review does not touch

Both are stated in the book, and neither is answered anywhere on this site. That is a decision rather than an omission, so it is worth saying plainly and once.

Whether space-agency footage is authentic. The book’s case that ISS and Apollo material is staged — wires, green-screen and CGI errors, bubbles on spacewalks, a diver reflected in a visor, a moon-landing studio — runs through pp. 10–11 and the wider argument of Space Travel Requires Faith at pp. 56–87. We do not assess it. Note what this does not exempt: the physics in that same section is answered in full. Whether a rocket can push against vacuum is a question with an experiment attached, and it has two pages of its own.

Whether The Final Experiment was staged. On p. 11 the author puts himself at 90 per cent certain that the December 2024 Antarctic expedition was faked. We do not assess that either.

The reason is the same in both cases. These claims turn on the authenticity of footage and the good faith of named people, not on a measurement a reader can repeat. Nothing on this site is equipped to settle that, and a review that graded them would be trading the one thing it has — arithmetic anybody can check — for an opinion about character. Silence here is not agreement, and it is not a concession. It is the edge of what this method can do.

Neither is one of the twenty-four. The only place they meet the catalogue is the Space Travel Requires Faith row, which is marked unassessed for exactly this reason.

Where the argument actually is

One cell per page, in the book's own order and under its own section titles. Blue is prose, and the darker the blue the more words. Sand is a page carrying a picture and no sentence on it. A red outline marks a page that states one of the claims below.

500Pages in the draft
24Testable claims in it
17Answered in full
80%Of its words, in the first 240 pages
121Pages carrying a picture and no sentence
sparse prose     dense prose a picture, no sentence hosts a claim

Opening & the 12 Science Questions

pp. 7–55 · 49 pages · 7,328 words, mean 150 a page

Space Travel Requires Faith

pp. 56–87 · 32 pages · 4,788 words, mean 150 a page

Hydrostatics & Optics

pp. 88–116 · 29 pages · 3,288 words, mean 113 a page

The Equator Flight Data Challenge

pp. 117–123 · 7 pages · 1,304 words, mean 186 a page

Celestial Globes Exposed

pp. 124–152 · 29 pages · 3,248 words, mean 112 a page · 1 of them a picture with no sentence

Unknown Luminaries

pp. 153–178 · 26 pages · 1,955 words, mean 75 a page · 2 of them a picture with no sentence

Perfectly Synchronized Gas Rotating with Earth?

pp. 179–202 · 24 pages · 3,101 words, mean 129 a page · 1 of them a picture with no sentence

Extraordinary Evidence or Fallacy

pp. 203–240 · 38 pages · 7,160 words, mean 188 a page

All Construction Records Missing?

pp. 241–414 · 174 pages · 6,068 words, mean 35 a page · 89 of them a picture with no sentence

Antarctica's Magnetic North

pp. 415–473 · 59 pages · 2,177 words, mean 37 a page · 28 of them a picture with no sentence

The book changes register at page 241, and that is the shape of it. Everything about the shape of the Earth happens in the first two hundred pages, at a mean of 128 words a page. Then the argument about proof runs to p. 240 — the densest section in the draft, 188 words a page. After that come 233 pages, half the numbered book, holding a fifth of its words.

Those pages are not empty, and it would be wrong to say so: there are 725 images in this draft across 358 of its 500 pages, and exactly one page in the whole book is genuinely blank. The last two sections are photographic — state capitols, World's Fair halls, asylums, train stations, Civil War portraits, Antarctic coastline. But they are plates, not captioned evidence. Of the 174 pages in “All Construction Records Missing?”, 89 carry a picture and either nothing at all or a bare place name — “Ohio”, “China”, “Indiana Illinois”. The section's argument lives in 32 pages, which hold 5,233 of its 6,068 words. The rest is accumulation.

Two independent things agree on that boundary. The measured one is above. The other is the author's own: page 240 stamps everything after it SPECULATION and says “Everything beyond this point should not be used in the shape debate.” He fenced it himself, and we take him at his word — which is why the two sections after it are catalogued but not answered.

Method. Word counts come from the text layer of the 500-page PDF (Canva export, created 3 August 2026) via pdftotext -layout; the image inventory is pdfimages -list on the same file. Page numbers are the book's own folios, read off the page. They sat a constant 26 from the page numbering of the text dump this map was built from, checked at nine landmarks — note that pdftoppm and pdfimages number the same file one higher, so the offset against those is 27 — but the prerelease circulates in renders whose leading pages differ, so that offset is a fact about our copy rather than a citation anyone else should rely on. The folio is. Words set inside an image are not counted as text, which is why the picture inventory is reported alongside — word counts alone would misdescribe this book badly. Front matter before p. 7 is excluded, its pagination being irregular. If any of this is measured wrong, name the section and we will correct it here.

Two kinds of entry, and only one of them states anything

The book’s claims come in two grammatical forms, and the difference between them decides whether anyone can do anything with them. It is worth separating, because they are printed in the same lists, under the same headings, and counted the same way.

22Entries in the three “red flag” lists at pp. 165–166
10State something that could be checked
12Ask whether someone else should check
17%Of the book’s substantive sentences end in a question mark

A finding asserts something about the world that can be gone and looked at: “mountain shadows are never cast on the bottom of clouds during sunset”; “46% of all stars actually show negative parallax”; “during a solar eclipse, the shadow cast on the Earth is smaller than the Solar System predicts.” Those can be wrong, which is their merit. Somebody can measure a cloud, count the parallaxes, compute the umbra.

A gesture raises a doubt without saying what is wrong: “the explanation for a sun dog is not satisfactory”; “what evidence 100% proves that the Moon rotates?”; “stars visibly passing through the Moon?”. The formula “is not satisfactory” appears six times in the draft, always without saying which step of the explanation fails, or what would count as satisfying it.

The three lists at pp. 165–166States somethingAsks something
Sun observations (12 entries)75
Moon observations (7 entries)16
Star observations (3 entries)21
All three1012

The test used: does the entry assert something about the world, or ask about an explanation? An entry proposing an experiment without running it — “if we took time-lapse video of international flights at night, would the movement of the stars match heliocentric predictions?” — counts as asking. The lists are short and printed in full in the book; anyone who thinks we have graded one wrongly can re-do this in ten minutes, and we would rather be corrected than agreed with.

The defence, which is a real one

The book anticipates this. Its stated method is that falsification is independent of replacement: you may show a model fails without owing anyone a better one. That is correct, it is the strongest thing about the book’s method, and this review has said so from the start.

But it answers a different objection. Declining to supply a replacement is legitimate. Declining to supply the falsification is not, because that is the thing being claimed. A falsification names a prediction, names an observation, and shows they conflict. “The explanation is not satisfactory” does none of the three. It is not a falsification; it is a request for one.

Why it matters more here than it would elsewhere

Because the case is explicitly cumulative. Claim #3 is that “there are too many red flags in celestial observations” — the argument is the length of the list. And a cumulative case needs every item to carry weight. An open question carries none until somebody answers it, and if the answer goes the other way it carries less than none. So the list is doing work its contents have not yet earned, and the reader has no way to tell which entries are load-bearing.

The burden a published question carries. Raising a question is fair, and some of these are good ones. But a question printed in a book is not a private note; it asks every reader to go and do the work its author did not. That is a reasonable thing to ask once or twice. It is a different thing when it is half the list, and it means the answers — when someone does the looking — belong to the record just as much as the questions did.

So we did the looking

Two of the six “not satisfactory” entries now have worked answers on this site, and in both cases the answer went against the objection.

That is not a claim about the remaining four, which we have not yet worked and might lose. It is a claim about what the exercise costs: each of those took a day, and each began by supplying the specific objection the entry had left out. If a question is worth a line in a book, the answer is worth finding before it is printed — and where we have found it, it has not favoured the case the list is making.

The foundations — the argument, made once

Twenty-four items answered one at a time would inherit the book's own problem: the point drowns in volume, and each chapter gets to be judged without the others in the room. So the general argument is made here, once, and the pages below link to it instead of re-arguing it. Nothing in this section substitutes for answering a claim on its merits — that still happens page by page.

The shape of the argument

Knowledge here is a mesh, not a chain. Read one at a time, the objections often land: Eratosthenes really does assume parallel rays and a sphere before it measures either, and a single pair of shadow angles genuinely cannot separate a far Sun over a globe from a near one over a plane. We concede that on the page itself.

What the isolation misses is that Eratosthenes was never carrying the Sun's distance alone — not even in 240 BC. A generation earlier, Aristarchus had already put the Sun about nineteen times the Moon's distance, by a method with no connection to shadow angles: when exactly half the Moon is lit the Sun–Moon–Earth angle is a right angle, so the Sun's elongation from the Moon gives the ratio directly. One premise there is worth naming, because the catalogue below disputes it: the method assumes the Sun lights the Moon. It does not have to be granted here. The illumination is carried independently by the phase sequence and the terminator — see Is the Moon a Ball? — so the node holds on its own evidence rather than on Aristarchus needing it conceded. He measured that elongation as 87° and got 19. The true figure is 89.85° and the true ratio 389, so he was short by a factor of twenty — and it did not matter, because the result that kills a near sun is a ratio and needs no distance at all: the Sun is at least nineteen times as far away as the Moon. Every flat model on offer hangs the two at comparable heights, and none of them survives a factor of nineteen — let alone the true 389. Anyone could also check, then as now, that the Sun's angular diameter does not change between horizon and zenith, which a lamp a few thousand miles above a plane cannot manage: that is Q8, and it is an observation, not an instrument. Both were available to Eratosthenes' contemporaries and neither depends on him. Since then the same number has come back from trigonometric parallax, stellar aberration and radar ranging of Venus — three unrelated instruments, one answer. Knock over one pillar of fifty and forty-nine are still standing, which is what the ledger below is for.

A measurement that is no longer performed is not a measurement that failed. This is a separate point and it is easily folded into the first one, so it is worth stating on its own. Q11 asks why no scientist has tested a Compton generator in Antarctica. The answer is that a Compton generator is a 1913 teaching demonstration good to about one per cent, and ring-laser gyroscopes now measure the same rotation continuously to parts in 108 — several of them, permanently, at latitudes spread across the world. Nobody levels a kilometre of water for the same reason: better instruments exist, and water is a poor one at that scale. Disuse is usually evidence about instrument economics, not about the result.

That argument can be abused, so here is its limit. It only answers when the replacement measures the same quantity and is itself checkable by someone outside the institution that runs it. “We no longer need to check” is not a scientific position. Where no replacement exists the old experiment should still be run, and its absence is a fair thing to point at — the polar Foucault pendulum is close to that case, and our own page concedes the evidence there is thin rather than pretending otherwise.

There is no model on the other side to check, and that is deliberate rather than evasive: “it is much more effective not to present an alternative model at all” (p. 28), and “falsification is independent of replacement” (p. 187). The principle is correct and we concede it. You can show a thing is wrong without having a replacement ready, and demanding one is a bad habit of whichever side is defending. What it forfeits is that a falsification has to be a falsification of something. The local sun in one chapter, the non-straight light in another and the flat celestial plane in a third are never required to hold at the same time, because no chapter is answerable to the next. That concession also has a limit, set out in the next section: falsification needs no replacement, but a positive reading of the data does owe an account of the measurements already taken.

Three things get called falsification

This is the most important distinction on the page, and it is one both sides get wrong. Falsification of a model, a single reading that does not fit, and a real effect invoked in the wrong regime are three different events, and only the first is what the word is usually taken to mean.

The burden scales with the evidence already in hand — measurements, not popular opinion, and not the number of people who believe a thing. A result supported by many independent instruments takes more to overturn than one resting on a single measurement, because a replacement has to account for all of them at once.

And here is the part usually left out. A new reading of the data owes an explanation of the old data — though not of the old conclusions. It is not enough to show that a fresh interpretation fits the new observation; it has to say what the earlier measurements were measuring, under what conditions they were valid, and what is different about the circumstances that changes the answer. Those earlier numbers were real events in real instruments. They do not stop having happened.

General relativity is the model case, and it is the strongest example available to a sceptic as well. It did not merely beat Newtonian gravity, it contained it: in weak fields at low speeds the field equations reduce to Newton exactly, which is why every planetary ephemeris computed before 1915 stayed good. It kept the data and discarded the conclusions — absolute simultaneity went, the flat background went, gravity as a force went — and it paid for that by explaining precisely where Newton had been right and why. It also predicted 1.75″ of light deflection at the solar limb, twice the Newtonian value, and then that measurement was made. That is what a successful overturning looks like: it inherits the corpus and it sticks its neck out.

Read carelessly, this becomes a rule that nothing can ever be overturned, so state the limit. “Explain the prior data” does not mean “vindicate the prior data.” Sometimes the old measurements were artefacts and the explanation is why they were recorded — N-rays, polywater and the Martian canals were all overturned by accounting for the observers, not the observations. The requirement is an account, not a ratification. A new reading that says those measurements were wrong, and here is the specific mechanism that produced them has discharged the burden. One that simply declines to mention them has not.

And the same rule binds this review. If our own reading of some observation cannot accommodate a measurement the other side produces, that is our problem to solve, not theirs to drop. It also constrains what we may ask of the book: as noted above, falsification really is independent of replacement, so it would be unfair to demand a full cosmology before any objection counts. The burden described here attaches only where a positive reading is actually offered — a local sun, a non-rectilinear ray, a flat celestial plane. Where the book confines itself to saying that a particular proof does not stand alone, it owes nothing but the argument.

Where his own claims collide

Each row is a pair of positions from the book that pull against each other, and both halves are his. The rows are not all the same kind of collision, so each is labelled. Verbatim rows are two stated positions about the physical world that cannot both hold, and need no globe physics to read. Standards and entailment rows are weaker in kind and are marked as such: the first is an asymmetry in what counts as evidence rather than a claim about the world, and the second closes only once a further step is supplied, which we state in the row. Every quotation below has been checked against the prerelease text.

The book needs……hereBut needs the opposite……here
verbatim
Light to travel in straight lines
The reflection argument, which opens “Light travels in straight lines” and then asks whether a continuous straight reflection path is possible over a curved surface (pp. 113–115).Light to be bent by the air over the same kind of path“This table proves we cannot assume sunlight travels in straight lines over long distances through the atmosphere” (p. 202), and Q12 at p. 55. No refraction allowance is ever applied to the 18-mile lake.
verbatim
Stacked and deconvolved planetary images to be manufactured
“Image stacking + Deconvolution = Reality?” and “How to manipulate a photo to achieve the desired planet” (pp. 156–157).A stacked, edited image to be a reliable record of where things areThe Jupiter frame the book itself labels “(image stacked and edited)”, captioned “Once you use the laws of optics to conclude this black dot can't be a moon shadow, heliocentrism quickly falls apart” (pp. 159–160), restated as settled in the recap and in Claim #3.
verbatim
A camera's magnification to recover what curvature should hide
The 50-mile Chicago time-lapse and the P900/P1000 material: objects seen “WAY farther than predicted by Earth curve calculators” (pp. 90, 110, 118).The same camera's resolution to delete what is in front of it“The camera's angular resolution and haziness right above the water surface perfectly explain why the bottoms of the buildings are visually missing” — the same frame, p. 111.
standards
One demonstrated fake to void an entire body of evidence
“We only need to find one undeniable piece of fake evidence to remove all NASA heliocentrism evidence” (p. 59); the same rule stated at p. 38.A positive conclusion to stand on evidence he could not locate“I could not find the formal document with their exact measurements” — printed on the same page as “the detected discrepancies are consistent with the behavior of a vortex rather than that of a solid rotating sphere” (p. 187).
verbatim
An unattached medium held in sync to be mechanically indefensible
“The higher layers of air would have to travel mechanically faster to keep up with the lower layers. This goes against demonstrable engineering principles” (p. 190); Q10 and Q11.An unattached sky to turn nightly anywayStars and planets in “nightly rotation” about Polaris on a “flat celestial plane” (pp. 131, 141–142) and a Sun that “circles” annually (p. 173), with no mechanism offered. In fairness: he rejects the celestial globe over a whole chapter, and F2 means he owes no mechanism — but the p. 192 challenge asks what makes an unattached drone keep pace, and that question does not obviously stop at gas.
entailment
Gravity to be real, and not replaceable by density and buoyancy
The book's opening page, correcting his own side: “They claim that relative density and buoyancy fully replace gravity; this is clearly not the case!” Repeated at p. 197 — “Stop using relative density as a replacement for the effects of what we call gravity.”Gravity's power to shape a water surface to be doubtful and unprovenQ2 asks why nobody has shown it “strong enough to literally bend the laws of hydrostatics in a controlled environment” (p. 45), and p. 89 asks “Why do we only associate the bending of water with the ocean? Gravity cannot pick and choose.” But the law he invokes settles it against him. His statement of hydrostatics is four-fifths right and stops one clause short: he applies perpendicularity to the container walls, never to the free surface, which is the only boundary whose orientation decides the question. Add that clause — a free surface is perpendicular to the net body force, which is Archimedes’ Proposition 2 — and a real downward effect fixes the shape of the water by itself. There is nothing left for gravity to overpower. In fairness: his scepticism is aimed at spacetime curvature as the explanation — p. 57 offers “gravity = we still have no idea” as a live option — not at the downward effect itself. The water conclusion follows from the effect and from his own hydrostatics, and needs no relativity at all.

One model has to answer to every chapter at once. That is the constraint the globe is under, and it is the constraint the alternative has not yet been put under. None of this implies bad faith — these are positions colliding, not a person being caught. A book assembled chapter by chapter is exactly where you would expect to find them, and finding them is what a review is for.

Settled once, then cited

Two kinds of thing sit here, and the distinction matters. The first three are established outside this review, by instruments that do not depend on one another; no page here proves them, they are cited. The fourth is different: the book makes rocket thrust in vacuum a headline claim, so this review does derive it — at length, on its own page — and the entry exists so that the rest of the site does not do it again. Either way the rule is the same: settle it once, then reference it.

  1. The Sun is about 93 million miles away. Radar ranging of Venus, stellar aberration, and trigonometric parallax — three unrelated techniques, one number. Does not rest on Eratosthenes, before or since. Established outside this review.
  2. The Earth turns once per sidereal day. Detected by five mutually unrelated physical mechanisms — a spinning mass (Foucault 1852, and every ship's gyrocompass since), the Sagnac effect on light (Michelson & Gale 1925; ring lasers now at parts per billion), the Coriolis force on a vibrating structure, the Sagnac effect on matter waves, and quantum phase coherence in superfluid helium. No shared calibration chain, no common scale factor, six orders of magnitude of precision between the crudest and the best, and no disagreement. Established outside this review — though our drifters page recovers the period independently from public NOAA data, which is a check rather than the source.
  3. Light through air bends by a measured amount, not an assumed one. Geodesy does not assume straight sightlines; it carries a refraction coefficient, conventionally k ≈ 0.13, and corrects for it. Honest limit: near the ground k is not a constant and has been measured from −4 to +16, which is precisely why long-baseline work uses evacuated pipes. Established outside this review.
  4. Rocket thrust exists in vacuum. Derived here, not borrowed — it is Claim #2 and Q1, so Rockets Don't Push Against Air argues it from the nozzle outwards and Thrust, Measured in Flight gives the in-flight measurement record, cross-checked by mutually independent methods on the same engine with the ground-chamber artefact quantified at about one per cent, in the direction that flatters the chamber. Every other page cites those two rather than re-arguing thrust.

The catalogue

The groupings below are the book's own — its three headline claims, its twelve numbered questions, its chapter titles. The structure the book does not supply — what these claims share and where they collide — is the section above.

How claims are graded

Seven verdicts, used unchanged across this project and its siblings Flat Earth Origins and the dome-model review, so a grade means the same thing everywhere. The verdict grades his claim; the smaller chip beside it tracks our progress. A verdict marked prov. rests on a page that has had one pass and no review. Items with no verdict have not been assessed — that is a real state, not an oversight.

Refuted
A specific measurement, dataset or source contradicts the claim.
Standard physics
The observation is real and the mainstream model already predicts it. It does not discriminate between the two models — in either direction.
Misleading
The conclusion outruns the evidence or the arithmetic that is supposed to carry it, or a cited source says something different from what is reported of it. This describes the argument, not the author.
Not demonstrated
Asserted without the evidence that would be needed to establish it.
Unfalsifiable
No observation could refute it as stated. Named, not ridiculed.
Self-contradicted
Collides with a position the same author takes elsewhere — the table above.
Sustained
The claim survives scrutiny, and the observation genuinely counts against the globe model as stated. A rubric whose every outcome is adverse is not a rubric, it is a verdict written in advance, so this one has a state the author can win. Current count: zero. If that changes we will say so here first, and the page that earns it will lead the catalogue.

Standing rule: grade the claim as he actually hedged it, never a compressed or strengthened version. Where a page answers a stronger claim than the book makes, the item stays unassessed until that is fixed.

The first grouping below is the book’s own; the five after it are ours, sorted by what each claim argues about. The book's own order is preserved in the map above — position is his, grouping is ours. Every question is quoted verbatim from the prerelease draft; the draft numbers two consecutive questions Q4, on pp. 46 and 47, and both are listed. This index counts 24 claims rather than the 22 his numbering alone would give, because two long sections — Hydrostatics & Optics at p. 88 and Space Travel Requires Faith at p. 56 — deserve rows of their own.

By verdict — what we concluded about his claim

10347
Refuted 10 Misleading 3 Standard physics 4 Unassessed 7

By our progress — how far the answer has got

17412
Answered 17 Partly answered 4 Draft 1 Not yet 2

Twenty-four claims. The two rows measure different things: a claim can be fully answered and still come back as an observation the mainstream model simply predicts.

The three claims, as the book and the site both state them

Three claims, published twice over: shapedebate.com carries them, and the book states them on page 2 and returns to the same three at the close of its shape-debate portion. That makes them the load-bearing set by its authors’ own construction, so they go first here rather than distributed among the families below. Where the two wordings differ the difference is quoted — on the first claim it decides the verdict.

Optics, perspective and hydrostatics

Six claims. The strongest part of the book, and where most of what we concede sits.

Thrust in a vacuum

Two claims. The most decisively testable set, and the one with the most measurement behind it on both sides.

Rotation and flight data

Five claims, all answered — the only family where public instrument data settles the question without either side running a new experiment.

Celestial observations

Five claims, four answered. The largest open gap in this review, and we would rather say so than pad it.

Standards of proof and the historical record

Three claims across 271 pages. Nothing here is an observation about the shape of the Earth, which is why the family sits last — and why two of the three are catalogued rather than answered.

What we concede

A review that cannot concede anything is not a review. These are places where the book is right, or where the observation is real and the disagreement is only about the cause.

The pond arithmetic is correct

Over 540 feet a globe hides nothing. His curvature figure is right to the digit, and something did disappear.

The perspective physics is real

Angular resolution and perspective compression really do make distant objects vanish over flat ground. The question is at what range, not whether.

The Action Lab ordering is real

Gas reaches the chamber wall about two seconds of playback before the syringe moves. Neither account forbids that ordering.

Foucault pendulums are hard

They are genuinely difficult to run well, and the demonstration is often presented with more confidence than the apparatus earns.

The asymmetric-standard charge lands

It is correct, and it lands on this review too. We found an instance of our own double standard while writing the page that describes it.

He fences his own speculation

Two hundred and thirty-three pages are stamped SPECULATION and excluded from the shape debate by the author himself. That is more discipline than the genre usually shows.

What would change our mind

Every answered page here ends with tests that could go against it. The project needs the same thing, and it has two.

On any single claim: a claim that survives scrutiny and genuinely counts against the globe model as stated is graded Sustained. The count is zero today. If one lands it goes at the top of this page, not the bottom, and the scoreboard above changes the same day.

On the thesis of this page: the mesh argument says the book needs a different world per chapter. It would be retracted by a single stated set of auxiliary positions — one optics, one atmosphere, one sun — that holds across every row of the collision table simultaneously. Not a reply to each row in turn, which is always available; one set, applied to all of them at once. That is the thing we have not been able to construct on his behalf, and it is what we would want to see.

What would settle it

Every answered page ends with tests that could go against us, or they would not be worth proposing. Seven are written up as a hand-off built from the book's own falsification-first, Team A versus Team B methodology, with no commentary attached — the Self-Test Protocol.

In draft — published for review, not yet answers

These are unreviewed first drafts. They are published so they can be read in place and marked up, not because they are finished. Each is marked noindex, is not linked as an answer in the catalogue above, and carries a notice naming what is still outstanding on it. Eight pages have left this list since it was written: Q2 hydrostatics, Q4 mirrored reflections, Q8 the Sun’s size, Q12 shadow angles, and the selenelion and moon-tilt entries at pp. 166, 168 and 169 have been through a review pass and are answers now, and two were never claims of his in the first place — Is the Moon a Ball? and Perspective Cannot Make a Sunset, which answers a paper he cites rather than a question he asks. Both are foundation pages and sit with the supporting work below.

The Eclipse Came In From the Wrong Side

DraftClaim #3 · p. 166. The fourth red flag, and the only one not the book’s own work — the argument belongs to a named third party with a fixed time-lapse camera and three weeks of frames, reached through the book’s QR. His measurement is sound and his stated totality time reproduces to the minute. The step that fails is which motion the eclipse is held against: the daily arc belongs to the whole sky, and the approach belongs to the Moon alone. The two run 140–160° apart, and the bite the page computes is the one his own photograph shows.

Curvature Is in the Construction Record

Section p. 241. Concedes the premise outright: engineering documents mostly do not say "Earth's curvature". The argument is about procedures that would visibly fail if the term were absent — levelling that defines level as perpendicular to local gravity, radio path planning, tunnel geodesy — rather than about documents asserting anything.

The Standard of Proof Cuts Both Ways

Sections p. 203 + p. 415. The most self-critical page on the site. If the argument is that the two models face asymmetric standards of proof, that critique lands on this review too, and the page says so before it says anything else. The Antarctic magnetic half has been withdrawn — it answered a claim the book does not make; his actual argument is that declination itself is an invention.

What the /42 Document Actually Is

Work in progressA reference check on the same file: five documents concatenated rather than one paper, an unattributed lead monograph, and experimental detail that does not survive inspection — including an apparatus using LEDs in 1913. Kept separate so the physics does not rest on it.

Two Photographs That Have Been Argued to Death

Shellpp. 110–112. Chicago from the Michigan shore and the Lake Pontchartrain towers. Concedes first that the Pontchartrain image is not a curvature proof and that this review will not use it as one. The argument it does make is internal: the mechanism offered at p. 110, camera angular resolution plus haze, is excluded by the book’s own arithmetic thirty pages earlier — a 1,748-foot tower stays resolvable to roughly 878 miles, and the photographs are taken at 57.

Supporting pages

Is the Moon a Ball?

Foundation page · no claim of his. Several claims turn on the Moon, and none of the pages answering them should have to re-establish its shape first. Five independent lines, four ground-based and three doable with a camera: the terminator a facing disc cannot have, shadows that diverge where the light grazes, features swinging a hundred arcseconds across a face whose outline never deforms, a radar echo saying the Moon is as deep as it is wide to four parts in ten thousand, and a limb with relief that returns to the same place. Built on ratios rather than distances wherever it can be, because the ratios are what decide the question — and the one distance it does lean on turns out to be amateur-measurable too, by the same moonbounce operators.

Mislabels, Not Arguments

Housekeeping · no claim of his. Production slips in the book and the site, kept separately so they never get mistaken for objections. Three QR codes labelled SUN, MOON and STARS resolved one position out of step — since corrected, and the entry is kept as a record of the prerelease state; the question cards run Q1, Q2, Q4, Q4, Q5. The test for inclusion is that the item would still want fixing if he is entirely right about the shape of the Earth and this review is entirely wrong — which is why nothing on the page is cited against any argument, and why it is worth having while the book is still prerelease.

Perspective Cannot Make a Sunset

Foundation page · a source he cites, not a claim of his. The book sends readers to a technical paper at shapedebate.com/42 as proof that vision is “globular”, and it is named as the root of three arguments at once — the sunset, Polaris, and the pond. Answering it once is cheaper than answering them one video at a time. Its central equation is correct and we grant it without reservation; what we dispute is the sentence printed underneath. On the paper’s own worked example, on its own p. 5, the mechanism it describes can never put anything below a horizon — and its own deflection table reads zero at the horizon, which is the one place every claim it is cited for actually happens.

One Spin, Written Across Every Latitude

Fifteen NOAA ocean drifters recover the length of the sidereal day to within half a per cent, and their loops reverse direction at the equator. Three models of Earth predict three different pictures; the data picks one. Supporting evidence for Q10 and Q11.

Self-Test Protocol

Seven falsifiable tests built from the book's own stated methodology — falsification-first, Team A versus Team B — that the author can run himself. Hand-off ready, no commentary.

Thrust, Measured in Flight

Ground vacuum chambers can always be accused of not being empty enough. Engines have also been measured firing in real space — and measured several physically unrelated ways at once. A 1993 NASA cross-check of four such methods on the same engine agrees to a few per cent, and quantifies the chamber artefact at about one per cent, in the direction that flatters the chamber.

The Action Lab Footage, Frame by Frame

The book argues at p. 20 that a third party's vacuum-chamber video accidentally disproves rocket thrust, because the syringe only moves once its exhaust reaches the wall. Measured frame by frame, the ordering is real and conceded — gas at the wall about two seconds of playback before first motion — an ordering neither account forbids, since a push too small to see looks identical to one not yet arrived. What the footage rules out is the wall as the cause: the delay is 25 to 220 times too slow for a pressure wave, returning smoke has no feature to copy, and thrust answers its own flare at the nozzle within a frame or two.

Something Did Disappear Over a Flat Surface

In August 2026 he towed a four-inch raft 540 feet across a pond and filmed it vanishing from a lens a third of an inch above the water. The curvature arithmetic on his slide is correct to the digit — a globe hides nothing at that range — so something local, roughly fifty times stronger than curvature could be, did the work. His own source files say what: from that vantage the raft and the entire pond behind it fit inside a single blur width, on a camera watching the scene with the equivalent of 20/100 vision. Refraction, the explanation most people reach for, is the one candidate the footage measurably excludes. Ends with the afternoon of tests that would settle it.

The Black Swan, Answered

A point-by-point response to the Rampion Wind Farm curvature video the book cites at pp. 91–95 as real-world evidence, including the two-century record of superior mirage on that stretch of English coast.

Gyroscopes and Earth's Rotation

A separate review, from an adjacent project: whether ring-laser and fibre-optic gyroscopes detect Earth's rotation, what instrument drift does and doesn't explain, and the 180° test that separates the two.

Status

Of the twenty-four items, seventeen carry a verdict and seven do not — 10 refuted, 3 misleading, 4 standard physics. The seven unassessed are unassessed for stated reasons: two sit inside the author's own speculation fence, two are sections whose wider argument we have not answered — one of them by choice, being the agency-footage material set out above — one is a cumulative claim that cannot be graded from a subset, one is a charge against this review that we accept, and one has a chapter thesis still untouched. This is an active review of a book that is itself still in prerelease, so both sides are moving. Pages are dated and revised in place rather than replaced, and where a page has changed materially in response to something the author said, it says so.

The primary sources