Haha, yes. There are always assumptions to make or constraints to consider. But they are also often not obvious, so... A quote by Fry from Futurama comes to mi

Haha, yes. There are always assumptions to make or constraints to consider. But they are also often not obvious, so... A quote by Fry from Futurama comes to mind: > Zoidberg: All 6,000 hulls have been breached! > Fry: Oh, the fools! If only they'd built it with 6,001 hulls! When will they learn?