40k years from now, a hominid excavates a computer and materializes a login page in the ether. "We think they used this for ritual sacrifice or to brush their teeth or both."
40k years from now archaeologists explore a former landfill, find an adult toy and enter into endless academic debate about whether it was really a dildo
Ahh the good old Nacirema
You might enjoy the book "The Weans" by Robert Nathans, <https://www.goodreads.com/en/book/show/2664067-the-weans>
It appears to be a primitive game where the user tries to guess which of 9 images contains “traffic lights” or “motorcycles” (whatever they are).