alt Hacker NewsThis feels hand wavy.
I could make the same claim of a bridge before it collapses, without realising the steel was weak, or had micro fractures.
Where's the proof? What an outlandish claim! Don't you see traffic flowing as normal?
Of course, we shouldn't drop all advancement due to worries. I do think we should study the results a bit more closely though.
Bridges deteriorate by default. That is a well understood process with well understood reasons, which we monitor and work against. Salt, thermal cycles, load, rust.
Humanity does not deteriorate by default. Claiming it does so through some hand-wavy pseudo-evolutionary arguments is not a strong case, and requires at least some evidence to be taken serious. How about a (equally unfounded and just for the sake of argument) reverse claim: Humanity got more intelligent, because high child mortality favored physically strong children instead of mentally strong children.