There's enormously more clarity created from doing the thing than talking about the thing.
Talking about the thing is like a low-fi simulation of the thing.
But the details matter for whether a thing will be viable or not, and only the real world has the fractal, complex details.
Our brains can't comprehend all of the details, so they have to think in concepts (which must be an abstraction), but the real world can simulate all of the details instantly.
The real world is like a conversation partner that can fundamentally reason through every fractal detail instantly and tell you where it doesn't work.
That's why doing is more powerful than talking.