Turing: it's impossible to tell whether an arbitrary abstract program will halt
everyone since: it's impossible to tell whether an arbitrary actual program will do god damn *anything* and how expensive it'll be to find out. get in the sandbox, proggie.
old: sandbox as in a safe place to play without making a mess out of the rest of the playground
bold: sandbox as in the thing cats use as a bathroom, because you don't want the program to piss on your couch
@vyr "gonna pop this program in the litter tray in case it poops itself"
