Not to brag but....

‘Event boundary’ or the ‘doorway effect’ is a real thing. Crossing a doorway cleanses your mind of what happened in your last environment to prepare you for what may lie across the next threshold (presumably so our ancient ancestors wouldn’t be worrying about breaking up with their cave girlfriend while going out to hunt, hyperbolically speaking). A much better explanation of the phenomenon here: (https://www.scientificamerican.com/article/why-walking-through-doorway-makes-you-forget/)