I have a YouTube Chanel that some of you may be interested in: http://www.youtube.com/TheRationalFuture containing interviews with notable futurists and videos of the Australian Singularity Summits and Humanity+ Summits.
Neat. I want one of these bumper stickers you mentioned, especially the one with Emiya Shirou's quote, and I'll go with an existential bumper to match. I hope though that people don't stop rationalizing and philosophizing because Kierkegaard, Nietzsche and Heidegger did did a fair job.
As mentioned the environment plays a large part. My main point is, a more robust phenotype may have been selected for in harsher climates - thicker bones, larger skulls, larger brains. An example are Neanderthals - they became cold adapted, and therefore had a 'robust' phenotype. Robust hominins often have thickset skeletons and large heads - and therefore somewhat larger brains as a consequence.
The actual average size of the Neanderthal brain - was not significantly greater than modern humans. Also the Neanderthals had a different shaped skull - and a dif... (read more)