(June 29, 2015 at 11:09 am)Chuck Wrote: Current theory of stellar evolution and climate modeling suggests there less than 1 billion years before earth in its current orbit would become too hot to support complex organism with biochemistry similar to ours.
Shit, that makes it sound urgent.
"Well, evolution is a theory. It is also a fact. And facts and theories are different things, not rungs in a hierarchy of increasing certainty. Facts are the world's data. Theories are structures of ideas that explain and interpret facts. Facts don't go away when scientists debate rival theories to explain them. Einstein's theory of gravitation replaced Newton's in this century, but apples didn't suspend themselves in midair, pending the outcome. And humans evolved from ape- like ancestors whether they did so by Darwin's proposed mechanism or by some other yet to be discovered."
-Stephen Jay Gould
-Stephen Jay Gould