Comment by skydhash

With an abstraction, you literally move your thinking up a level. So you move up a floor up the tower and no longer have to think what's happening below. The moment something leaves your floor, its course is set. If a result come back, its something familiar, not something from the lower floor.

A human coder can be seen as an abstraction level because it will talk to the PM in product terms, not in code. And the PM will be reviewing the product. What makes this work is that the underlying contract is that there's a very small amount of iterations necessary before the product is done and the latter one should require shorter time from the PM.

We've already established using a LLM tool that way does not work. You can spend a whole month doing back and forth, never looking at code and still have not something that can be made to work. And as soon as you look at the code, you've breached the abstraction layer yourself.