Deep Work: Professional activities performed in a state of distraction-free concentration that push your cognitive capabilities to their limit. These… - Cal Newport

We didn’t sign up for the digital lives we now lead. They were instead, to a large extent, crafted in boardrooms to serve the interests of a select group of technology investors.

This concept upends the way most people think about their subjective experience of life. We tend to place a lot of emphasis on our circumstances, assuming that what happens to us (or fails to happen) determines how we feel. From this perspective, the small-scale details of how you spend your day aren’t that important, because what matters are the large-scale outcomes, such as whether or not you get a promotion or move to that nicer apartment. According to Gallagher, decades of research contradict this understanding. Our brains instead construct our worldview based on what we pay attention to. If you focus on a cancer diagnosis, you and your life become unhappy and dark, but if you focus instead on an evening martini, you and your life become more pleasant — even though the circumstances in both scenarios are the same. As Gallagher summarizes: “Who you are, what you think, feel, and do, what you love — is the sum of what you focus on.

When an entire cohort unintentionally eliminated time alone with their thoughts from their lives, their mental health suffered dramatically. On reflection, this makes sense. These teenagers have lost the ability to process and make sense of their emotions, or to reflect on who they are and what really matters, or to build strong relationships, or even to just allow their brains time to power down their critical social circuits, which are not meant to be used constantly, and to redirect that energy to other important cognitive housekeeping tasks. We shouldn’t be surprised that these absences lead to malfunctions.