I grew up with some great education about wilderness survival. I've made my fair share of mistakes, for sure. Did a stint in search and rescue; learned a ton about whole classes of mistakes I'd never considered.

When I hear people gushing about colonizing Mars, I think about how deadly parts of our own planet are. I just shake my head. Probably 99.9% of our population is completely unprepared for that level of hardship. I know I'm not.