<Zefnar> I’ve heard the term “impossibles” a few times - what does it mean? Like a glitch?
<amateurhour> have you ever seen 'Program in disorder!'?
<Zefnar> No don’t think so
<ais523> it's a situation where the actual state of the game doesn't match what the programmers expected could be possible at that point
<Kes> Impossible = NetHack yells at you, but continues to run. Panic = NetHack yells at you, then explodes.