And then if you use a system malleable enough to reduce starting effort to 0 across anything (project or task) you do... you just about solve that problem
How can a productivity system reduce the starting effort of any task to zero? There’s such a thing as activation energy.
Sure, you can try breaking a task down to its smallest component, but not all problems can chunk like that. And even the smallest component will take non-zero work.
I would be curious to learn about a system that could actually accomplish that.