the bone collectors records seem to suggest that humans have not physically changed for some 300,000 years. some variations in stature and skull shape but i think that when you reach the language/tool/reprogrammable brain stage as we are, there isn't any further to go, except into the intangible.
it might sound cringe but there might actually be a good reason to believe that spacefaring aliens all basically look a lot like us.
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.
