system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why does one get a weird and somewhat unusual feeling when coming back to their home after a long trip ?

Do you all know what I am talking about? When you go on vacation or a trip away from your home for about a month or more and then you return back to your home, you get an unusual or a sort of "weird" feeling. Your house smells different when you walk through the door and it seems kind of unfamiliar. This weird and unusual feeling usually goes away after a day, but what is going on here? Why do we feel this way?
gpt
I don't know for sure, yet it seems rather obvious to me. Normally, when you are not on vacation, you wake up in the same bed, in the same house, and that is the place that you spend most of your time in. When you've been on vacation for a while, your brains have adjusted to living in a different environment, and they have sort of "forgotten" about your home. When you return home and see it again, the memories of your home flood back. It smells and look different from the place that you have been having a vacation at for the past days. That's why it feels kind of outplaced, different.