Finally, what happens if we build the space-station at r<3M??? We look down the corridor, and what do we see?
Nothing. Because even though we are outside the event horizon, the gravity is still strong enough to crush you to a messy puddle on the floor.
just kidding. What, curved space station with a person who gets continually closer to you depending on your choosen numerical value?
Edited by rueh, : No reason given.