The first reason is for your work. You already expend much of your energy working to earn a living. In comparison, ultralearning is a small investment, even if you went so far as to temporarily make it a full-time commitment. However, rapidly learning hard skills can have a greater impact than years of mediocre striving on the job. Whether you want to change careers, take on new challenges, or accelerate your progress, ultralearning is a powerful tool.