I go back and forth on which human trait is the absolute worst for development One one hand sunk cost fallacy is something that's genetically supported us for millenia and so ingrained into humanity that its incredibly hard to stamp out but FOMO and the idea of trying to squeeze every single piece of water from a stone (destroying yourself and any long term growth) being a requirement to succeed causes so many to miss the forrest for the trees tbh if you can be aware of both in yourself (you can never truly eradicate them, but you can be aware of them and work around em) you are guaranteed to outperform your peers, and on the flipside if you let them control you without any awareness of them ur really crippling urself especially in markets where everything is so heavily emotional, these two traits dictate those emotions and so dictate the market itself