this is great productivity hack, but personally i'd rather sacrifice the productivity and finish the workday (or even just go for lunch) feeling like i've finished something.
It feels like a reward mechanism for a different type of person.
Long-term, I can't comprehend how this could possibly increase productivity unless it makes you more satisfied / happy and, coincidentally, more productive.
For some it might work, for others - definitely not.
You are missing the point. Finish what you doing, but then start the next item, and leave it unfinished. Whatever you do, leave something unfinished for you to finish tomorrow.
Long-term, I can't comprehend how this could possibly increase productivity unless it makes you more satisfied / happy and, coincidentally, more productive.
For some it might work, for others - definitely not.