[jamesb93]

This just seems like a crazy amount of micro-management when often the answer is to just set a goal and complete it. Categorising and reducing tasks in this way is surely not healthy long term. Sorry! No more shallow work today. Can't do that. It simply can't work for most people.

[Cthulhu_]

Yeah, but just setting a goal and completing it is something a lot of people just don't do anymore - not when you let yourself get distracted by things like emails, messages, or people appearing at your desk. Focusing on getting a task done (and not tolerating any distractions from that) is the main point of the "technique", I'd say.

[blunte]

As with goals, this will just push you in a direction. You don't have to be absolutely rigid, but at least you'll start to feel when you are straying from your real goals.