• John: a curious end-user
• Jacques: a proficient programmer, who used to program in R, Python, Haskell, Perl, Ruby and Prolog
• Julia: a dynamic programming language

John: Hey Jacques, whatcha doing?
Jacques: Oh, just cooking up a little something with Julia.
John: Wow, sounds great!
Jacques: Yeah, we're doing some taste tests for a few recipes we're working on.
John: Awesome, do you have all the ingredients you'll need?
Jacques: Yeah, we think so. Not sure yet.
John: Okay, well let me know when you're done. I'm hungry already!
Jacques: John, this is just a metaphor.
John: Oh.