Groundhog Day thoughts on breaking a time loop...


Zombie Hunter
So. You got your Bill Murray weatherman in "Groundhog Day." He's stuck in a time loop, reliving Groundhog Day, say, 1993, over and over and over for God knows how long. At the end of the day, he retains his memories but is physically reset to the age he was at the beginning of the day. Eventually he breaks out of the loop but I'm wondering about some of the options.

1) Stay awake until past 8am the next morning. The loop only resets while he's asleep. If he goes past it by staying awake, then he's into a new day.
2) Leave the geographical area. Probably not helpful. He just winds up going to bed at a motel in Illinois and waking up back in Pennsylvania.
3) Do everything exactly the same a second time. Also probably not helpful. Who can remember exactly what they said and did the day before?
4) Reverse the polarity of the neutron flow.