P=NP = "portal to hades opens": engineer's take on the classic CS joke

markjeffrey · x · 2026-10-07

Mark Jeffrey joked on X with Stephen Piment that if P=NP were ever proven, a "portal to hades opens" — riffing on the classic cryptography meme that modern encryption rests entirely on the assumption P≠NP. A one-liner about the most famous open problem in computer science.

Original post →

More from Fun

Fun channel →