You can "solve" human biology? For what optimal outcome? We can all be Elons running around trying to procreate as much as possible? What is the optimal human model? How is human biology NOT going to become anything except the same distorted race to the bottom that everything else has been? We've not solved the mental model of survival-of-the-fittest.
The best analogy for a positive outcome I can come up with is living within our means as a species. Leverage AI, leverage all the tools we have for production, but we have to find equalibrium with ourselves and the universe we live in.
I'll vote for the terminators and meteors if we insist on living beyond our means.