Home from the ALA

The day I spent at the American Library Association convention was long and intense, full of talking to exceedingly intelligent librarians. How I know they were exceedingly intelligent is this: I do not normally talk in my sleep, but the night after the convention, I woke myself up out of a sound slumber by saying aloud the words "And what, exactly, does the term 'critical mass' mean in this context?"

I wish I could remember the dream that led me to that sentence. It doesn't seem as if it could p