You can accomplish many tasks X. The point of the piece is that were you to do X, now Y and Z would be on your plate, and you’d feel behind on those. So you can

You can accomplish many tasks X. The point of the piece is that were you to do X, now Y and Z would be on your plate, and you’d feel behind on those. So you can do difficult tasks, but you can’t resolve the feeling of being behind by doing difficult tasks. You resolve the feeling by being okay with not getting it all done as long as you operate near your steady state optimum.