Is Earth flat?
PM $61.9K
1
1
Is Earth flat?
PM $61.9K
1
1
Current odds
Snapshot from
As of Oct 27, 2026, 3:00 PM UTC, Yes is priced at 0.5% on Polymarket.
Polymarket
- Yes0.5%
Yes prices. They are not order quotes; check each platform's rules, fees and live prices before trading.
AI Analysis
Trader mode: Market mechanics, assumptions and risks
PM $61.9K
Reported volume · provider units
1
Saved contracts
0
Same-question pairs
Source snapshot: Oct 27, 2026, 3:00 PM UTC
About This Event
This market will resolve to "Yes" if conclusive proof that the earth is flat becomes public by December 31, 2026, 11:59 PM ET. Otherwise, this market will resolve to "No". The resolution source for this market will be a consensus of credible reporting.
This analysis is awaiting a background update, so its prices may be older than the odds above.
Snapshot observed 2026-10-19T03:00:06.086Z. This analysis describes that snapshot and is not a live news update.
What the contract measures
The Polymarket event asks whether Earth is flat, and its rule text says the market "will resolve to "Yes" if conclusive proof that the earth is flat becomes public by December 31, 2026, 11:59 PM ET" [1]. Otherwise it resolves to "No" [1]. The resolution source is stated as "a consensus of credible reporting" [1].
The wording matters. The contract does not ask whether Earth is flat. It asks whether conclusive proof becomes public within a fixed window. A reader comparing this contract with a differently worded market on another platform should check both the trigger ("conclusive proof... becomes public") and the deadline before treating the two as the same question.
The provider lists an end time of 2027-01-01T04:59:00.000Z [1]. This is the platform's listed close time, not a separate announced event. Its UTC timestamp corresponds to the December 31, 2026, 11:59 PM ET deadline in the rule text, so the two describe the same cutoff.
Reading the snapshot
The saved observation was taken at 2026-10-19T03:00:06Z, and the evidence was retrieved at 2026-10-19T05:55:43Z [1]. These times describe when the data was captured. They are not a live feed, and the prices below should not be read as current at any later moment.
At that observation, the Yes outcome was priced at 0.005 and the No outcome at 0.995 [1]. These are snapshot prices, not executable quotes, and they are not verified probabilities.
The sample covers one market, and the coverage record shows all one market was included with no partial sample [1]. Because only this single contract is present, there is no comparison across outcomes or platforms to draw from. The evidence also does not establish that the provider lists every possible real-world outcome, though this event has only the two binary outcomes shown.
What remains uncertain
The evidence does not say whether any proof has emerged, what reporting exists, or why the prices stood where they did at the observation time. It also provides no volume, liquidity, or trader count, so the snapshot cannot be taken as a measure of market depth or consensus among participants.
References
- Polymarket: Is Earth flat?. Provider data observed 2026-10-19T03:00:06.086Z.
AI-generated analysis based on market data. Not financial advice.
Saved Oct 19, 2026 UTCThis saved content is awaiting a background update. It may contain outdated claims; use the dated market data and provider rules for the latest available information.
Overview
This PredictPedia entry covers a Polymarket contract titled "Is Earth flat?" The contract asks whether conclusive proof that the Earth is flat will become public by a set deadline. Under its rules, the market resolves to "Yes" if such proof becomes public by December 31, 2026, 11:59 PM ET, and to "No" otherwise [1]. The stated resolution source is "a consensus of credible reporting" [1]. The contract's end time is listed as 2027-01-01T04:59:00.000Z, which corresponds to that ET deadline [1]. The deadline appears in the contract rules and is not an announced event date. The question is framed around proof becoming public, not around what is currently believed. Because the resolution depends on credible reporting, the contract turns on whether a claim of conclusive proof gains recognition in reliable coverage within the window, rather than on individual claims made online. The scientific background is clear. Wikipedia describes the flat-Earth conception as "an archaic and scientifically disproven conception of the Earth's shape as a plane or disk" [2]. Wikipedia's article on modern flat Earth beliefs states that the claims of modern proponents "are not based on scientific knowledge and are contrary to over two millennia of scientific consensus based on multiple confirming lines of evidence that Earth is roughly spherical" [3].
Historical Context
Many ancient societies subscribed to a flat-Earth cosmography, according to Wikipedia [2]. The model has since been scientifically disproven, and it has undergone a recent resurgence as a conspiracy theory in the 21st century [2]. Wikipedia's modern flat Earth article also notes that flat Earth beliefs are classified by experts in philosophy and physics as a form of science denial [3].
Why It Matters
The contract measures a narrow, rule-based outcome: whether conclusive proof that the Earth is flat becomes public by December 31, 2026, 11:59 PM ET [1]. It does not measure whether the Earth is flat, since the sources describe the flat-Earth model as scientifically disproven [2] and as contrary to a long scientific consensus that the Earth is roughly spherical [3]. Traders therefore follow how the resolution rules are applied, including the requirement for conclusive proof and the reliance on a consensus of credible reporting [1].
Snapshot context
The latest published provider snapshot for this topic was observed on 2026-10-19 at 03:00 UTC. It contains listings from Polymarket. Market descriptions and listed closing times define the contracts; they do not establish that the real-world outcome has occurred. This article does not include a separately verified news update. [1]
Frequently Asked Questions
What does the "Is Earth flat?" contract resolve on?
It resolves to "Yes" if conclusive proof that the Earth is flat becomes public by December 31, 2026, 11:59 PM ET, and to "No" otherwise [1].
What source determines the outcome?
The stated resolution source is a consensus of credible reporting [1].
Does a "No" resolution mean the Earth is round?
The contract only asks whether conclusive proof of a flat Earth becomes public by the deadline [1]. Wikipedia describes the flat-Earth model as scientifically disproven [2], and notes that it conflicts with over two millennia of scientific consensus that the Earth is roughly spherical [3].
AI-written background. References identify the evidence used; Wikipedia links under Learn More are additional reading. Prices and provider rules are dated snapshots. This is not financial advice.
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Market Insights
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