It is an observation errr that one needs maxwell equations to trade. Simply, at some point physics phds had no path to productive employment and wall street started exploring numerical simulations instead of classical formulae. So having Monte Carlo methods on your resume allowed these physicists to ruin economy by their ignorance of economy. You would be better off knowing a specific industry, statistics, machine learning, finance, psychology, sociology and how to daven.
At the end, this is a marginally productive activity, yes efficient markets help society, but there are many other jobs that will have positive impact on Hashem’s world 🌎