Samir’s Selection 08/20/2016 (p.m.)
The Cosmos Might Be Mostly Devoid of Life – Scientific American
If the pathway from chemistry to biology is long and complicated, it may well be that fewer than one in a trillion trillion planets ever spawns life.
Affirmations that life is widespread are founded on a tacit assumption that biology is not the upshot of random chemical reactions but the product of some kind of directional self-organization that favors the living state over others—a sort of life principle at work in nature. There may be such a principle, but if so we have found no evidence for it yet…
Posted from Diigo. The rest of my favorite links are here.