No idea, and I don't want to know.
Administrative Note: This game is about asking stupid questions, and the last several posts here don't strike me as following that theme properly. I don't consider asking "What's this or that?" as stupid. It can lead to more problems than anything, which I won't tolerate if it goes into offending others.
Resuming the game to normal now: Why is it always harder to go upstairs than downstairs?