Something that makes sense as long as you don't really think about it, much like how you know the sun is there, but you can't look directly at it.
"No, dude, seriously! The Korean kids are spies from Kim Jong Il!"
"But why art school, dude?"
"Oh my god! It's obvious! Well.... wait... Crap, it made sense in my head."
"Solar Logic, dude. That or you're retarded."