Interactive numbers in the UI: seriously awesome. LOVE that they did this. Hopefully we'll get live updates to code in more systems, it's wonderful.

Lack of a 'course' to go through: ? I have no idea where to start. Nor can many of these be applied outside of the little editor with the 'tutorial'. Elsewhere, KA has a nice 'do this, then that (or that)' set of branching paths that give you a reasonable path to take. I see none of that here. Am I missing something?