It’s tempting to think that in order to be a valuable team player, you should say “yes” to every request and task that is asked of you. People who say yes to everything have a lot of speed. They’re always doing stuff but never getting anything done. Why? Because they don’t think in terms of velocity. Understanding the difference between speed and velocity will change how you work. Thinking in multiple dimensions is one of the crucial thinking skills that no one ever taught you.
Farnam Street
Understanding speed and velocity: Saying “NO” to the non-essential
