What the book actually contains
verified
Michel de Nostredame published Les Prophéties from 1555. The work is organised into centuries — groups of a hundred four-line verses (quatrains) — with the word denoting the count of verses, not a period of time. That misreading is common and worth dispelling first.
verified
Ten centuries are conventionally counted, but Century VII is incomplete in the received editions, so the total falls short of a thousand. Additional material — the Présages and the Sixains — circulates in various editions and is of varying authenticity.
disputed
A single exact total of quatrains cannot be given without specifying an edition. The publication history is complicated, some material is posthumous, and some is of contested attribution. Any figure quoted without an edition is under-specified — the same edition-dependence documented for every corpus on the structural dashboard.
The organisation into hundreds is deliberate and is the numerical fact of real interest here: it is an authorial structuring decision, comparable to the Daodejing's 81 chapters, and it can be studied as such without any reference to prophecy.
Why the predictions cannot be scored
Assessing a prediction requires knowing, before the event, what would count as a hit and what would count as a miss. The quatrains are constructed so that this is impossible.
disputed
They are undated, use obscure and archaic vocabulary drawn from several languages, employ anagram-like proper names, and refer to actors in terms general enough to fit many candidates. A verse that fits many futures has not predicted any of them.
The result is that interpretations are produced after the events they describe, and the fit is then presented as evidence. This is the post-hoc selection problem in its purest form — the same failure that decides the Torah codes case on the methodology page, and it is worth noticing that the two cases fail identically despite looking nothing alike.
verified
There is a straightforward test available, and it has never been passed: publish a specific, dated, falsifiable interpretation of a named quatrain before the event, and let it be checked afterwards. Nothing prevents this. It is not done.
That asymmetry is the whole argument. Retroactive interpretation is unlimited in supply; prospective interpretation is free to attempt and never attempted. A tradition that produces only the first is telling you what kind of tradition it is.
What Nostradamus was doing
verified
Nostradamus worked as a physician and astrologer and published almanacs annually. Prophetic almanac literature was an established and commercially successful genre in sixteenth-century Europe; he was operating within a convention, not inventing one.
exploratory
Whether he understood himself as recording genuine visions, as producing astrological literature within a genre, or as writing veiled commentary on the politics of his own time, is debated and probably not decidable from the texts. All three readings have serious defenders.
The historically interesting question is not whether the quatrains predicted anything. It is why this particular sixteenth-century almanac writer, among many, became the one whose name still circulates — a question about reception and about the durability of ambiguous text, which is genuinely worth study.
Numbers inside the quatrains
exploratory
The quatrains contain numbers — dates, counts, durations — and numerological readings of them are abundant. Because the text is long and the interpretive conventions are unconstrained, such readings can be generated indefinitely, and their abundance is a consequence of that freedom rather than evidence of encoding.
Readers who want to see the mechanism directly can use the alphanumeric calculator: pick a target number and try to reach it from a chosen name using different systems and spellings. How easily it works is the demonstration. The same freedom that makes it easy there makes quatrain numerology unfalsifiable here.
Testing the Patterns
The post-hoc selection problem, stated formally.
Claims That Fail
Comparable claims and the failure modes they share.
Alphanumeric Calculator
Demonstrate for yourself how easily a target total is reached.
Numerical Architecture
Deliberate authorial structuring, where it can be verified.
Cite this page
Formatted references for this page. The evidence grade is part of the claim — when quoting a graded statement, carry the grade with it.