[quote=@Host] Hillary doesn't know how. There are more Anthropic variables than distance from the sun. In fact, the amount of necessary variables for a planet with conditions sustainable for life amount to a probability greater than the number of atoms in the universe. At best, we could build a bio-dome, but even then the chances are only slightly increased. A bit less than the number of atoms in the universe. That's not very much in the scope of things, and it's mostly in developing countries. [/quote] There are tons of counters to that argument that show it to be false but I can't recite any off the top of my head. Meh. It's something likely to kill us, especially as the environment gets worse.