a nonrigorous proof

Going to a Furcon is not a cure for depression or misery et al. If you are depressed, you need to solve the cause of your depression or misery et al. goiing to a furcon is like sticking your head in the sand and it only makes it worse in the end.

He cast out the demons of possessed persons, and he bound the jân, wellah, in yonder corner.

For such propositions unimaginability looks like a function of a kind of conceptual impossibility.