omg, i have read this and not even one of you got this right, its obviously the one room where wheatley makes his first test, when you complete it, and go through the door, then he wants you to solve the same test again, then 2 panels open and you walk through, and you are at the beginning again, but distance between theese spots were actualy huge adn you can see it doesent make sense at all.

I think that it's the one room where Wheatley makes his first test. When you complete it, and go through the door, then he wants you to solve the same test again, then 2 panels open and you walk through, and you are at the beginning again, but the distance between these spots is actually huge and you can see it doesn't make sense at all.