The world goes on

People you haven't seen for a dozen years are doing interesting, exciting, boring, frustrating, amazing, awful things. They are making friends, having epiphanies, worrying over tough decisions, and maybe you pop into their head now and then, maybe more or less than they pop into your head. The strange and huge world of other people's …

Human Species

I've just started taking a class on Coursera, 'A brief history of humankind'. The first lecture was very interesting and I learned that the multiple species of humans--homo erectus, homo neanderthalensis, homo floresiensis and so on--were not simply links in a chain leading to us, homo sapiens. All these species of humans lived at the …