It's been conclusively shown that we can't craft a warning message that will keep future civilizations away from nuclear waste. We must instead craft a message that ensures only the shittiest people run towards the nuclear waste
This place is a place of honor, lots of extremely cool stuff you can lord over your friends and neighbors with is here. The cool stuff is concentrated at a center, no girls or fags are allowed there. Go ahead, dig up the glowing green stuff, my guy.
And then, as suggested in the comments, the Etherium logo.
Boom. We got this solved right quick. Academia can suck it