Creativity is an odd thing.  Best not to think to deeply about it.

My e-book folks are working on the cover for Portal, and they asked me to come up with a tag line for it.  A tag line summarizes a book in about twenty words or less, in a way that will make the casual reader want to buy the thing.  Tag lines are hard.  I don’t do tag lines.  My brain was an utter blank for a week, so I started writing an email to them saying we’ll have to do without one.

And then creativity happened.