When One Man's Conclusion Is Another Man's Axiom

These two notes aren't just on the same topic — Wade is describing Diamond, almost naming him. Diamond's famous sentence from Guns, Germs, and Steel is precisely the position Wade dismisses as "fortunate accidents such as that of geography." Read together, they stage a fight not over data but over epistemic status: what counts as a finding versus what counts as a dogma.

Diamond presents his claim as the conclusion of his book — the thing thirteen thousand years of evidence points toward. Wade reframes the identical sentence as an axiom: a doctrine inherited from Franz Boas, adopted for political reasons before any evidence was consulted, which then dictates what explanations are permitted. On Wade's telling, geography isn't where the inquiry ended; it's the only place the inquiry was allowed to end.

The interesting move is that Wade's critique is structural, and structural critiques cut both ways. If "culture and environment explain everything" can be a politically convenient prior masquerading as science, then "genetics explains the differences" can be too — and historically often was, with far uglier consequences. Wade's argument doesn't actually settle whether Diamond is right; it only establishes that Diamond's claim shouldn't get to be the unexamined null hypothesis.

Which suggests the real question these notes raise together: in politically charged sciences, who decides which hypothesis bears the burden of proof? Diamond's environmental determinism and Wade's genetic realism are both, in a sense, single-cause stories competing to be the default. The evidence may matter less than which story gets to sit in the position of "what we assume until proven otherwise" — and that position, both notes inadvertently show, is awarded politically.