I think you're ignoring your own passive thought processes as the mind turns a problem over. For me, I've noticed that my mind cogitates while I appear to be p

I think you're ignoring your own passive thought processes as the mind turns a problem over. For me, I've noticed that my mind cogitates while I appear to be procrastinating. Once there's a potential solution in sight the "keep going once started" mode activates and it's easy to keep going because you've already anticipated pain points.