2 = 0 = 404 compliant

404 // n.

[from the HTTP error "file not found on server"] Extended to humans to convey that the subject has no idea or no clue - sapience not found. May be used reflexively; "Uh, I'm 404ing" means "I'm drawing a blank".

--The Jargon File version 4.3.1, ed. ESR, autonoded by rescdsk.