[Gil]

Awar, the problem is the "survival of the fittest" is getting pretty messed up since modern culture doesn't promote the "fit" to succeed and endorses the "weak" to have the same opportunities. I'm not anti-whatever, i'm just stating that from a social darwinian perspective culture is shaping human minds so that the the fit are no longer those with either brain/muscle capacity but it's almost a chaos-driven mechanism.
Example: A woman says she wants to marry an "intelligent" man. What does that mean? Does she want her offspring to be intelligent since her husband his? What if he has serious disbilities but is at the same time very intelligent?
Hence, the whole "nature will cull the weak" is getting outdated since we have messed up nature beyond any expectations.