I could, even if unlikely, conceivably see a scenario where Pence (or some other hand picked successor of Trump's) wins by the skin of their teeth in 2024, abet with a Democratic Congress, and them getting crushed in 2028. If that didn't happen, it's likely we'd be locked into a string of two termers till at least the 2040s.
I just can’t see Biden running again
You also just couldn't see Biden winning GA. Biden's sister/closest political advisor has literally said he'll run again. Maybe learn to stop trusting your (evidently incorrect) gut.
Paul Revere, off the high horse...
My “gut” was also right about Kennedy losing which I said would happen long before a single poll showed him trailing. Anyway, Biden will be 82 years old. 82 years old. He’s not running again.
If Democrats get totally destroyed in 2022, I think Biden, if he's not running, resigns then.