Portals

Okay.
Assume portals, as per the video game Portal, exist and are possible, etc. etc.

If you created one portal on, say, the floor, then another one directly above, you could theoretically fall endlessly.

Given this, would a human continually falling be at terminal velocity until starvation/death from stress?

Assume the portals have been made on linoleum dining room floor and a stucco ceiling. Would it be possible for the subject to move outside the portal to stop? If so, would the impact upon landing be enough to kill them?

>>8
If that's the case there would be some friction around the edges of the portal from uhh... stray, randomly-moving air molecules colliding with the ground. This would lead to heat of course. Also if it were sucking air in, pressure would build and push back. This makes me think there would be no geometric series but just a new terminal velocity. Who the hells knows though since we can only guess how a portal works.