Measuring Progress by the Cost of Light

Time is not the only life-enriching resource granted to us by technology. Another is light. Light is so empowering that it serves as the metaphor of choice for a superior intellectual and spiritual state: enlightenment. In the natural world we are plunged into darkness for half of our existence, but human-made light allows us to take back the night for reading, moving about, seeing people’s faces, and otherwise engaging with our surroundings. The economist William Nordhaus has cited the plu...

 How to Improve Self-Control in Schools

Make school more demanding for all students In its coverage of U.S. secondary education, the popular press tends to focus on two relatively small groups: students headed for elite colleges (many of whom are under tremendous stress and pressure) and students at risk for dropping out (many of whom come from the most disadvantaged communities). These stories are important to tell, but they leave out the vast majority of students, who don't fall into either of these extremes. These high school st...

 A Logic Gate Made of People

“I don’t know your names,” Von Neumann said, tapping the shoulders of two of the soldiers. “The two of you will be responsible for signal input, so I’ll call you ‘Input 1’ and ‘Input 2.’” He pointed to the last soldier. “You will be responsible for signal output, so I’ll call you ‘Output.’” He shoved the soldiers to where he wanted them to stand. “Form a triangle. Like this. Output is the apex. Input 1 and Input 2 form the base.” “You could have just told ...

 The Not-Believing-In-God-Glasses

But then I thought, "But I don't know how to not believe in God. I don't know how you do it. How do you get up, how do you get through the day?" I thought, "Okay, calm down. Let's just try on the not-believing-in-God glasses for a moment, just for a second. Just put on the no-God glasses and take a quick look around and then immediately throw them off. So I put them on and I looked around. I'm embarrassed to report that I initially felt dizzy. I actually had the thought, "Well, how does the...