Maybe. The only experience I have with RPN is some coding dojo, where we were implementing something like Excel and the trick was converting all expressions in cells into RPN before evaluation.
I recently learned that the classic 80s computer game Starflight was written in a strange dialect of Forth. That, for me, is the coolest use of the language and was almost enough to motivate me to learn it.
IIRC there's really not much to Forth; except that its entirely stack based; you have a very limited number of named variables, all functions expect you to have previously pushed their parameters onto the global stack; from where they will will pop them and then push their results.
Thats it
I heard quite a lot about Factor ten years or so ago (I have a vague recollection that Slava Pestov used to hang out on the old Clojure mailing list but might be wrong) and that might be an easier way to get into a stack-based language these days.
morning