Which kind of routes back to the original, unanswerable question that I didn't ask. Are we not evolving outside of the brain because of our ability to compensate? Without our tools, we are still a very vulnerable species. The way people can self-sabatoge for sake of comfort in a single lifetime is what leads me to believe that we may ultimately become the creators if our own demise... but maybe we will build the tools to join the other intergalactic humanoids instead.