[mlok]

This is very similar to the Pareto principle : 80% of the highest result is obtained through 20% of the highest effort. To get to 100% of the highest result you will have to deliver four times more effort.

Most of the time, 80% is good enough. Save your resources for other endeavors.

[tasssko]

I’m sure you mean well but you’ve liberally modified paretos principle. In general it is a macro indicator of outcome not effort! Something like 80% sales come from 20% of customers.

[CuriouslyC]

The Pareto principle is just a contextualized way of describing the dynamics of a system with diminishing returns. If you could say anything has "low hanging fruit" then it has diminishing returns.