The second scenario I think.

We didn't need to comprehend infinity to catch Mammoths or dodge Sabretooths - so we can't. But we have done rather well all things considered.

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If something is in me which can be called religious then it is the unbounded admiration for the structure of the world so far as our science can reveal it... of the manifestations of the profoundest reason and the most radiant beauty, which are only accessible to our reason in their most elementary forms...
Albert Einstein