I chose not to jump off the cliff because of a fear about something that hasn't happened. I know what you mean, and I'd consider evolution to be settled scienc

I chose not to jump off the cliff because of a fear about something that hasn't happened. I know what you mean, and I'd consider evolution to be settled science beyond the reach of anyone but willfully ignorant religious zealots. But there's a lot that's been 'put back on the table' recently that's been off most of the developed world's tables for a long time. Ie. Theirs is not an irrational fear.