Comment by ubercow13
2 days ago
That doesn't sound right. If you're on the event horizon you're not going at very slow speeds in that sense, the space around you is already falling into the black hole faster than light.
If you're "travelling at 1m/s so you can only raise your hand above your head at 1m/s by expending infinite energy" then you're already travelling at c-1m/s away from the black hole through local space just to 'stay still' at 1m/s 'velocity'. No wonder you need infinite energy to accelerate your arm 1m/s further and things get weird - you're travelling at relativistic velocities.
There's no reason I need to cross the event horizon at C. I can cross the horizon as slow as I want. Particularly at the event horizon of an ultra massive black hole, gravitational acceleration can be as low as a couple G, easily defeated right up until the horizon is crossed.