No, Alice, they mean "impassible". It's a real word, it means something other than "impossible." Look it up. Yes, originally the tiny door had a manic depressive personality but the editors had it changed because they didn't want to frighten the children.
Nirvana is closer to punk than what passes as punk these days.
Stevie Wonders of the IT World? I dunno.. Whistler from Sneakers?