Comment by ROllerozxa

Indeed. There is such an immense amount of media that is produced from decade to decade that nobody can ever know everything and understand "all" the references. Things that may seem like "things everyone know about" vary wildly between location and year ranges, and in the recent decades with the Internet there are just so many subcultures that all could be classified as "nerdy" but which lack a lot of overlap.

I suppose I'm too young to have watched Star Trek when it was really popular (and have all sorts of other blind spots when it comes to TV shows and other media even for people my age), but I've definitively heard about it. And I know some other references to it like Spock and the Vulcan salute, but the Tricorder had completely missed me until now.

Also, with something like GRAVITY_DEATH_STAR_I I could pretty easily tell it was a reference to something fictional (in that case Star Wars) since there is obviously no celestial body with that name. But with the Tricorder I was looking to actually make sure it's not some kind of actually real but vestigial hardware sensor thing that Android might have supported in the 00s, tangentially related to the Tricorder that was on Star Trek. I have certainly witnessed stranger coincidences.

Like Android still has functionality in the API for supporting trackballs, which I know used to be on some really early Android phones. So if that had been among the list as "there's this joke input device called a 'trackball' in the API, implying there are phones with a big physical ball you can roll around to move a cursor on the screen", that would be quite silly. Because it was a real and used thing in the past, even though nowadays it's more of a legacy feature (though might be a bad example as I assume you can connect input devices over USB or Bluetooth that may be treated as a trackball by Android).