[root-parent]

https://en.wikipedia.org/wiki/Back_pressure

[pshirshov]

The problem is not "backpressure", that's just one of the tools and there are different approaches with the same effect.

You can't express orchestration in terms of "backpressure" only, I think.

Implement-Review-Repeat loop does not involve backpressure in the strict meaning of the term.