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."
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).
An ancient ritual they believed would prove their humanity and worthiness of access to arcane engines of search.
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