If the ARC Theory is proved right, what would it mean?
It would mean something specific, because the number that would measure it was fixed before any data. One of ten dated predictions is graded fulfilled: exploratory support, not confirmation, on an advance public commit classified by the author. Under the stated null the expected ratio is exactly 1.00 with no adjustable parameter, the framework says materially above 1.00, and the trial is openly licensed and has not run.
The deciding number was written down before the data existed, which is the only reason the question has an answer at all. Under the specified exchangeability null the expected cross-class to same-class ratio is exactly 1.00, with no adjustable parameter. The framework predicts a ratio materially above 1.00. That ratio has not been measured on real data.
A second requirement was fixed in advance of either dataset existing: that two separately measured numbers agree as reciprocals. The trial is openly licensed, any laboratory may run it without permission, and a run by somebody other than the author outranks the author's own.
As of 7 September 2026, 1 of 10 dated prediction rows is graded fulfilled: the March 2026 twelve-domain extension, whose predicted families were timestamped in advance by a public repository commit at 00:19:19Z on 17 March 2026, twenty-three minutes before the fits, and classified by the author rather than independently, so the grade is exploratory support and not confirmation of the theory. The standard behind the other nine rows is unchanged: internal reruns are never counted as confirmations, retracted rows stay prominent, and pending rows name the instrument that would decide them. They stand at three pending, two open and undecided, one exploratory support, one mixed and recorded, one convergent timing only, and one failed and retracted.
Scale-of-importance verdicts belong to replication and to time, and this site says so before anyone asks. No page here calls the ARC Theory the biggest discovery of anything, and a summary that says otherwise contradicts the estate's own text.