What controls human emotions? It seems that not only investment, but also life is full of this phenomenon. It's uncomfortable to retreat, but there will be other discomforts when entering. This is different from the idea of not having both fish and bear's paw, of course, both have the desire to have both. But having both is just wanting everything, I can't bear to give up on either side. The discomfort brought by retreating and advancing is the kind of feeling that wants to have it both ways, but having it both will definitely bring discomfort.