Not quite. Granted, the act of starting to work on a task requires some effort. But assuming a procrastinator's task is within reach, it is in the realm his or her capabilities. The point is that if starting is the hardest part, you might as well start right away since you'll have to anyway. The earlier you start the less you'll suffer later. Starting right away could save yourself from having regrets. Like rushing a job, missing a deadline, doing a poorer job etc. Whereas you might not be able to control depression on your own with a single action or decision.