Real science backs the idea that your energy is your most important resource, but not the popular version: willpower is not a fuel tank you drain with effort, and vitality is lost less to how much you do than to how little you chose it

There is a real idea buried in it, and the science of human energy is genuinely interesting. The research says energy is a real and important resource. The catch, and it is the whole point, is that vitality does not drain like a tank in proportion to how much you do. The person who actually protects their energy, on this evidence, is not the one who hoards effort and does less. Your energy really is something like a master resource, worth attending to above most of what fills a planner.