i have spent a lot of time thinking about which subjects would educate me so that i outqualify as many other people as possible.
generally i think NT subjects are the most academically essential, such that say, mathematicians become brilliant economists without economics education, more so than vice versa. however, if you have your ass in a book too much, sedentariness depletes one's likihood of say, a ST career like military. so perhaps say, applied mathematics is more qualifying than say, pure mathematics, overall.
of course it's very plausible to educate oneself in a less essential subject, and then a more essential subject later on. in a sense, this can be related to how one develops their Superid. the following are integral typings of subjects, not so much typings of the people in them. i think a type may frequently study any subject that is "homoaristocratic" (ST with NF, Alpha with Gamma, etc.)
and these are just approximations, and there are many subjects in between.
Code:
(natura)(quanti)(social)(qualit)
(theore)ILI LII EII IEI (IN)
physic mathem philos litera
(global)LIE ILE IEE EIE (EN)
eleEng comSci econom sociol
(applie)LSE SLE SEE ESE (ES)
civEng crimin managm educat
(locali)SLI LSI ESI SEI (IS)
logist physio pubSer finArt
(Te) (Ti) (Fi) (Fe)
most chemists i've known were LII (and some SEI). most chemical engineers were LIE.