You're not wrong. But I feel that like most things, it's only hard because it hasn't been tried. Once we've done it a few times, it's routine. That's human nature.

We've also done some experiments already. There was, I believe, a Mercury mission where they spun the ship up. If I recall, it didn't go super well. But hey, we've had 50+ years to think of how to do it bette!