A programming language is not a compiler but an experience: editing, running, debugging and the runtime library all have to fit together as one cycle.

That was always the idea, and that that goes back even to the predecessor of Turbo Pascal, this idea that it's not just a compiler. It's an experience, right? I mean, you don't just compile your programs. You also edit them. You also run them. You also debug them. You also have a runtime library. It all has to like fit together.