the rule that says the trainee grocery checker who's been holding up 13 customers for 15 minutes gets switched for the fast, experienced checker immediately after you move to a lane with a longer line, is
the rule that says the day after you bookmark a new blog because of a brilliant post you found through a favorite writer, the brilliant blogger walks away from their blog and forgets all about it for six months.
Yeah, I know privileged First World problems. I don't think of them as problems, though. If I remember, and try, I can relax into the thing and enjoy watching the people in the slow lane, and delve into the brilliant blogger's Archives and get to know more about them.