If you can’t learn, you can’t thrive. - Cal Newport

As Harris argues, these companies didn’t invest the massive resources necessary to perfect this auto-tagging feature because it was somehow crucial to their social network’s usefulness. They instead made this investment so they could significantly increase the amount of addictive nuggets of social approval that their apps could deliver to their users.

To work without change or rest all year would have seemed unusual to most of our ancestors. Seasonality was deeply integrated into the human experience.

This magician’s trick of shifting the units of measure from money to time is the core novelty of what the philosopher Frédéric Gros calls Thoreau’s “new economics,” a theory that builds on the following axiom, which Thoreau establishes early in Walden: “The cost of a thing is the amount of what I will call life which is required to be exchanged for it, immediately or in the long run.