Mark Watney's DAY 1 lecture Now pay attention, because this could save your life. Trust me, I know what I'm talking about.Let me get a few things out of the way, right off the bat. Yes, I did in fact survive on a deserted planet by farming in my own shit.Yes, it's actually worse than it sounds. So let's not talk about that ever again.The other question I get most frequently is... When I was up t..