Biology has a natural explanation for my lack of common sense: we are not born to be satisfied. A different chemical in the brain, opioid, is supposed to create that feeling of happiness once you’ve achieved your goals. Unfortunately, dopamine is stronger than opioid, so even if you’ve attained all you ever dreamed of you will continue to do the same thing. Hence the dopamine loop. It is more fulfilling to anticipate and seek, to wander in circles, than simply to value and appreciate the fact that you have fulfilled your desires.