What you achieve in life can be thought of as the distance that you progress. Distance, in turn, is speed times time.
Speed is how fast you’re progressing, and time is how much time you put in.
This is why you’ll make more progress if you’re working on something that you’re naturally good at, by working with a capable team rather than alone, and by raising external funding rather than relying on internally generated profits. These are examples of ways to increase your speed.
It’s also why you’ll make more progress if you’re spending the majority of your time on one goal rather than pursuing multiple goals at once.