[zck]

I understand implementing words as you think they should be. However, you need the core first, and that's where I'm working right now. I'm trying to get the central loop, dictionary, and threading model functional.

Which brings up another complication -- the threading model. There are multiple, of course. But sometimes I want to figure out, for example, what the `w` variable does. Is it different between indirect threading and subroutine threading? Maybe!