An addition to that is that getting things right sometimes takes multiple attempts, at least for me. I've seen that in that work I attempted to do for the Linu

An addition to that is that getting things right sometimes takes multiple attempts, at least for me. I've seen that in that work I attempted to do for the Linux Kernel TCP stack and also in prior and later work related projects. Large sweeping changes may require familiarization with a large body of code and the impacts of any single change to the overall system behavior. This may be well intentioned and a good direction but the details may prove a pitfall if a slightly bad turn is taken. At that point you need to backtrack and that backtracking takes a while to conclude it is needed and to find a different approach that will work. Sometimes it takes time to realize that a direction is incorrect and a backtrack is needed and then some more time to clear your head off and find the right approach.