I was musing on the stuff I'd been working on all afternoon, and thought to myself I wanted to think about a different project.
Looked down, looked up, and suddenly the freeway was brighter, more in-focus, and somehow wider.
I had to laugh. I sort of complied - I'm not thinking about this afternoon, at least.
I normally don't get to notice the changes - timenchanter says he's gotten so he can see them, and they're a lot more frequent than I thought.