Umm...if you are equating the serotonin mechanism to zero sum then you don't get what it's for and I can't really explain past that. You don't lean into anything. It's built into your head. You literally cannot not do it. I'm not interested in why you are straw manning things I'm not saying. If I don't adhere to your "anything in the mind that's a serotonin mechanism is zero sum" there really isn't anything left to say besides you are wrong and learn more about it. 🤷