Why is Geographical determinism seen as outdated by historians?

by Fiacil

Most arguments I have seen rebutting geographical determinism state that societal development is not solely determined by geography, and while certainly influenced by it, development is contingent on many other factors: culture, the societies unique history, the achievements of individual people etc. However, aren't all of these in turn determined by Geography? Sure, two different societies in the same place will develop differently, but, assuming no external influences, won't the same place always develop the exact same society? I'm assuming I'm wrong, as geographical determinism is seen (probably for good reason) as outdated by historians, but why is that?

the_gubna