As the author Tim Ferriss once wrote: “Develop the habit of letting small bad things happen. If you don’t, you’ll never find time for the life-changi… - Cal Newport

When Carl Jung wanted to revolutionize the field of psychiatry, he built a retreat in the woods. Jung’s Bollingen Tower became a place where he could maintain his ability to think deeply and then apply the skill to produce work of such stunning originality that it changed the world. In the pages ahead, I’ll try to convince you to join me in the effort to build our own personal Bollingen Towers; to cultivate an ability to produce real value in an increasingly distracted world; and to recognize a truth embraced by the most productive and important personalities of generations past: A deep life is a good life.

Pushing past what’s comfortable, however, is only one part of the deliberate-practice story; the other part is embracing honest feedback — even if it destroys what you thought was good. As Colvin explains in his Fortune article, “You may think that your rehearsal of a job interview was flawless, but your opinion isn’t what counts.” It’s so tempting to just assume what you’ve done is good enough and check it off your to-do list, but it’s in honest, sometimes harsh feedback that you learn where to retrain your focus in order to continue to make progress.

The point of providing these details is to emphasize that intelligent machines are complicated and hard to master.* To join the group of those who can work well with these machines, therefore, requires that you hone your ability to master hard things. And because these technologies change rapidly, this process of mastering hard things never ends: You must be able to do it quickly, again and again.