Problem #1
God algorithms, God solutions etc, God methods etc often add unnesecarry complexity with very little benefit. There is no God, get over that...
Shipow: Even if I don't support religions, I'm pretty ok with the idea of an omnipotent mind as it stay in the context of narration. And I guess that even someone very trustfull will never imagine God as web/app designer ;)
Problem #2
Lack of evidence for decisions... I could understand iteratively improving a design because nobody gets "sign up", "sign in"... if it EVER happened! Jeff even admits there is little evidence against "sign up" / "sign in", and the link seems to be to some stackoverflow o similar upvoting thread (thus promoting over-simplification, lack of engagement and pack mentality common on such services)... The truth is "sign up", "sign in" is not confusing, unless you do not speak english, then you have bigger problems than "sign up", "sign in"... You know like using any of the interface...