I like to read publicity blurbs on books for their general absurdity. Recently, I've noticed that a lot of science fiction novels (or authors) seem to be being described as "High concept". I could never work out what it meant - the books labelled this way don't seem to have anything in particular in common.
Last night, noticing another such comment (describing Robert Reed's Marrow) it suddenly dawned on me what it means.
"This author has really fucking weird ideas."
I'd be interested to hear if anyone agrees or has an alternative definition for the term.