I submit that what pple should focus in trading are ikigais… (although i suspect Pareto could have hidden a hint or two. — here , i have a set of locally pareto-optimal short term life goals, how to make a market?)
(Previously i had wanted to trade experts’ (meta)underwear, but that turned out more to be like the market for million-dollar abstract art which nobody has seen in person! The seller of ikigais, otoh, has almost certainly a glimpse at the very least — Citoyen, dissect his favorite joke!)
EDIT: do. Not. Trust a physicist who tells you that the calculation (or optics alignment) was fun. However. Trust a mathematician (or economist) who happily flips burgers to support their habit. Informatiker/logician: depends on how alexithymic they are, the correlation may surprise you :)
Update: eg Kip Thorne highlighted the joy of having detractors eat crow. Thankfully did not pass on the bag of having “his intuition shredded” or “trying his best to stay away from being bored” or some such inanity :)