so i was just wondering, what if one were to push a graybeard off of high hrothgar? i know they are immortal, but if they fell all the way down, could u actually run down and find them in the greenery? and if u were to follow them, would they walk all the way back up? and omg could u see them actually use their shouts to kill the wolves and trolls DD?

Gameplay wise, they may be immortal, lore-wise, they're certainly are NOT.

According to GAMEPLAY, then yes I can't see why everything you said would happen

Lore-wise? Push a person off the throat of the world, greybeard or not, it's gunna be messy

Yes, and yes.

They would survive as they are essential and they will walk back to Hrothgar.

http://youtu.be/QgcKfER-Klw you go.

Almost as fun as shouting certain blades off of mountains...again and again.

I don't see what so exhilarating about that.

I don't know about exhilarating, but it's an interesting concept, and It'd be nice to see them put into practice in the real (Tamrielic) world, that they preach to the Dragonborn...and that's to only use their voice for the worship and glory of the divines (or something to that effect). Get them out of their isolated little slice of the world, and they'll become every bit as fallible as the rest of us.