The impermanence of everything. Also spiders.

Snicker. I think you improved on that answer.

The quote from Pascal is really me quoting Mrs. Who quoting Pascal in A Wrinkle in Time.

"Que será, será" is now playing non-stop in my brain. It's the original by Doris Day, too.

Re: the brain farts. Yes. It happens to me, too, when I'm tired and stressed. But if you're worried, let your doctor know.