The latter. I read about this elsewhere (except it was counting down from 10, but the details don't matter). It's psychologically priming yourself, "I'm going t

The latter. I read about this elsewhere (except it was counting down from 10, but the details don't matter). It's psychologically priming yourself, "I'm going to get UP at the last count!". Part of it is about how it's easier to make such decisions when it's not right now, but somewhere in the future. The second part is that when the count is up, you actually do it without thinking. I tried it a couple of times and it does seem to help with the "uggh no just one more minute" false reasoning. Haven't managed to turn it into a habit though.