Let’s imagine that our days are numbered. I don’t mean our personal days–we have always known those days to be numbered–but the survival of wo*mankind (* = tongue click). Millions of species have gone extinct before us and we have watched many of them pass without getting worked up over it. So let’s look at the end of the human species in the same dispassionate way. Leave a comment and tell me what you think the human weakness was. Too rapacious? Too callous? What would a warning sign look like? Let’s imagine humans go extinct, the planet takes thousands or millions of years to recover and eventually another sentient species starts strutting around like they own the place. What should they know? What can we tell them?