'Natural selection' is an oxymoron. Nature has never been shown to make a selection. Everything operates through Cause and Effect. Nobody has found any truly spontaneous happening anywhere. Everything comes from the Great First Cause. The point is, can we truly make some proteins and some processes that will last for thousands of years? If we are going to make shortcuts that work, why don't we extend life so that we all live for several hundred years in full health, first?