This was your first sentence in that paragraph:

Combined with some Dawkins, this is exactly what that book refutes. At every turn where human DNA has needed to make a decision, it has always chosen the least specific solution. Think of all the species whose DNA make that one wrong specific decision, they're either extinct or they're stuck. No other species is (are?) better equipped for environment change, in any direction mind you, than we are. Because of our relative continued ease to generally adapt, we gave our brain the needed breathing room for some accelerated evolving. Sprinkle in some Selfish Gene theory, and now we have a seemingly endless ability to pass on any idea we want. You then have a really good recipe for DNA and human future proofing.