“Maybe.  But now I have to punish you.  I could hurt you, like I do with most people.  Hurt you while you’re looping through the same action, so you feel that pain over and over and over and over again.  The only thing that doesn’t change is your brain.  That keeps going.  The pain is always fresh, it never gets easier to deal with, but I’m told there’s a certain point where you crack, and you go around the bend.  Takes a few days for most.  Then you get to a point where you work through your issues.  You don’t want to, but you do, because the only thing you have to occupy yourself with is the pain and your own thoughts… so you get mostly better, and then you crack up again, and you get better, and that becomes a loop of its own…”

“Fuck… you…”

“Until well after the sun goes out, they think,” Gray Boy said.  “Speed of thought, can’t turn it off unless I’m using it on myself, and I don’t think anyone’s immune.”

Wildbow, Worm, 26.6

Editor's note- Word of God says Gray Boy is incorrect about the length of the loops, and they only last a few thousand years.

Reference https://forums.spacebattles.com/threads/bobtheninja-reacts-to-worm-starting-at-interlude-23-no-spoilers.290679/page-78#post-13653258