An omniana is, according to the OED:
Thoughts or scraps of information about all or many kinds of things, esp. (a collection of) notes, jottings, or short pieces of writing on all or many kinds of subjects.
I feel like the chap in the Moliere play who is shocked to discover that all his life he has been speaking prose without knowing it.
Once, the Inky Fool's mind fell out of his ear