I don't need to do that experiment because that's how I lived my life for the first 30 years! I only got into GTD because eventually my life did get complex enough that I did forget things and I did suffer mental anguish about personal failures as a result of not having a more robust system. The way I do things now is perfectly in proportion to my needs. I certainly don't read lifehacker or 57folders, and I am not addicted to productivity. I use OmniFocus about 20 mins a week, and I am a much happier person and definitely more productive on the deep engineering stuff because I don't have anything nagging at the back of my mind.

Jeff telling me I should stop using todo lists is like an alcohol telling me to stop drinking. No, you should stop drinking, I should drink however much I like because I don't have a problem with it.