1020
A good engineer prepares for every use case.
(lemmy.world)
People tweeting stuff. We allow tweets from anyone.
RULES:
1980s: evil robot eyes were red because that was just the cheapest option at the time and nobody wants a green or yellow-eyed robot anyway.
2000s: you have to go out of your way to install red LEDs for the evil function, along with the blue LEDs you were obviously gonna use since they're they're the trendy new hotness after (finally!) having been invented in 1994.
2020s: evil robot eyes are red because everything's got addressible RGB LEDs in it these days and the robot picked red in software.
Innovation!
I just watched an amazing video about the creation of the blue LED and it's a true story of triumph.
And this one