Originally Posted by **********

Yes it was, and yes I do. This is done so that the audience knows what is going on, but yes I hated the way it was done in Interstellar. Coop and everyone else on board should know this already. This scene would have been much better if Coop would have given this demo to his daughter Murph instead. A reply of "Duh, Dad, I'm not stupid ya know!" would have been a nice touch.