The title is a little off, because what the article is basically arguing for is doing less because you will be more productive, rather than explicitly managing

The title is a little off, because what the article is basically arguing for is doing less because you will be more productive, rather than explicitly managing your energy levels directly. Dilbert creator Scott Adams (yeah, I know, I know), wrote a book some years ago where he suggested that if you optimise for energy first, everything else becomes easier. Food, sleep and work choices should be around optimising your energy levels because without energy, everything else is harder. That makes more sense to me than managing my time. Both viewpoints complement each other, and it's an excellent and worthy riposte to the death-march culture dominant in tech. We should lead the way on this more as an industry.