Was just perusing the Hoon tutorial out of curiosity, and it's wild how alien of a language it is. To my eyes it's like a bastard child of brainfuck and common lisp; look at the "simple Hoon program" they give in section 1.1 as your first introduction to Hoon code https://urbit.org/docs/tutorials/hoon/list-of-numbers/

Also, the interpreter won't parse integer literals without thousands separators (which are periods). JackieChanMindBlown.png