Compounding efforts and sunk costs.
Compounding takes place, whether we want it or not.
If we are spending our time on activities or projects that we don't want to continue, then that's time & effort lost. We are investing in building something we want to eventually throw away.
Instead, if we invest time in the people we want to serve, and building products we want to make, we go up the learning curve.
Even though we might not see immediate progress, each iteration is going to help us become better and move forward.
Where do you need to be so that your time is invested in the right sort of compounding and in choosing projects where you'd like to do 10,000 iterations?