"This Is Not A Door"
This article is about Space Sim Lore. It contains anecdotes or Spacesim mythology.
This Is Not a Door was the door at 440 Albert Street that separated Mission Control from the planetary surface in the old room. It was used regularly as a door most of the time. However, during the Mission it did not exist, and was not used under any circumstance except an alpha emergency. When Spacesim changed rooms in 2008-09, the sticker proclaiming the special status of the door was rescued.