First there was a big bang and a big flash. Or a big man (or woman) with a beard (maybe not a woman then) saying let there be light.
Either way, the world was created. Then the primeval soup was boiled on a nice simmer for a while until reduced to a tasty mix of creatures , including us. Unfortunately, too many cookery programmes on telly meant we ended up taking the concept of reducing the mix of creatures a bit too far by continuing to simmer the planet and even beginning to turn the heat up a notch. Now the pan's in danger of burning dry (which you'll know, if you've ever done it at home, is a messy business and not something to be recommended). The finely honed Minestrone is becoming a cup-a-soup and we're in danger of eating - and cooking - ourselves out of house and home (that's if more natural processes don't get there first - we’ve only got 7.6 billion years even if we stop cooking straight away.