Here's a thought. One of the concepts I reviewed for the test was the principle of discreteness. Here it is in a nutshell:
- In any language, there are a finite number of words and prefixes/suffixes/infixes.
- In any language, there are a finite number of grammatical rules shaping the way those words are put together.
- However, there is theoretically an infinite number of sentences that can be composed. (Try this sometime: read a book and highlight every sentence you think you might have read somewhere else.)
And I think the title of my most recent post counts as "a sentence I've never read before."