Am I the only one who thinks it wouldn't be that difficult for some billionaire to set foot on Mars?
If you accelerated constantly towards mars at its closest at say 2g, you'd be there in 20 hours or something, so if you accelerated constantly at 2g and then decelerate at 2g halfway you be there in about 28 hours. My maths is probably off but the point is that it wouldn't take the 9 months or so people say it would take.
So what's stopping people from doing this? Give me the million and one things I've omitted