Willpower fits into that feedback loop as the neocortex's credibility to the hindbrain. Having an abstract goal is going against the grain of your learned routi

Willpower fits into that feedback loop as the neocortex's credibility to the hindbrain. Having an abstract goal is going against the grain of your learned routine. When you're expending energy on something new, at some point you get a gut check saying "Don't bother, what we were doing before was fine".