Launched empty shell into orbit:

Great minds think alike, and so does yours. (image stolen from the martian)

On another site I pretty much made the argument that musk’s transports should _only_ be for putting feet on ground and lifting them off of it again. They should have a ring-and-core assembly in orbit. Dock 20-30 of your people movers to the ring, spin it up anywhere from .7g (155m radius) to 1g (225m Radius) with a…

...have you shot a bow while riding horseback?

Actually, the guy is fine. Your point would be valid if he was moving and then stopped abruptly (like a football player). However, having an object stop abruptly on his head (and be diffused by the helmet) is fine.

PROTECT YO GODDAMN NECK
Seriously though all that sudden compression is bad for you

I mean... a strong helmet will prevent injuries to the skull, but no amount of protection will ever stop a brain from rapidly accelerating and then decelerating by slamming into the side of your head, which is the real issue with head injuries.

And that’s how concussions work

...those cheek squiggles... No matter the angle they now look like some weird mustache (or super long nose hair?) Can’t unsee it anymore.