Human evolution; "Little foot's" balance mechanism (Introduction)

by dhw, Sunday, February 03, 2019, 10:14 (2343 days ago) @ David Turell

DAVID (re skin colour): These studies certainly appear to explain why our species adapted light or dark skin. Since folate is so important to reproduction, I would suspect it was more of a driving force than Vitamin D in producing this adaptation. (dhw’s bold)

dhw: And so the requirement for folate to aid reproduction was a “driving force”. Just like the requirement for fins to aid swimming etc. etc. Crystal clear again.

DAVID: Immediate driving forces are part of the pattern of survival for the overall purpose of evolution to the goal, humans. Crystal clear.

dhw: So you agree that the driving force for your God’s design of fins, camouflage and patterns of migration was survival, but God’s one and only purpose in designing all of these was to enable them to eat and be eaten (to survive or not to survive) until he could design humans, which apparently means that survival is a driving force but is not a driving force.

DAVID: Quibbling again. Survival is a secondary requirement for evolution to continue to its goal.

Sorry, but the quibble is entirely yours. If organisms don’t survive, there is no evolution, and an immediate driving force is a driving force.