as I've grown older, one of the things I've realized is that the primary driving force behind a lot of people's beliefs is, as pratchett put it, 'the overwhelming desire that tomorrow should be pretty much like yesterday was'. It takes a lot, like a lot Lot LOT, to get people to be willing to risk the unknown. people have this weird ability to look back at all of history, see how much things have grown and changed, and think to themselves "thank god that I live here and now, where things operate in the only possible correct way that was ordained by god. the past is nothing but barbarians dying of infections and the future is a dystopia that no one could possibly want or understand, but the way I grew up with is comfortable and makes sense. it's the natural order." this isn't a terribly unique thought, but the ability to think it without realizing that every generation that came before you also believed that very same thing with as much conviction as you did is....let's say it's uniquely human.