Yeah, getting older means living longer, and I'm good with that. But now and then I'll hear some 40-something who gets in shape and says "I fell better than I did when I was in my 20s!" And I'm thinking that when I was in my 20s, my joints didn't make all of those funny noises when I got out of bed, or bent over, or crouched, or... ugh, how do I get out of this crouch again?
"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
