The Blog.

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I read this statistic – that you forget 95% of the facts you learn in high school by the time you are 20 – with...

The Roundabout Some people find them a bit annoying, but the studies are conclusive: roundabouts are much safer, cheaper, and make traffic flow better. They...

I have seen some of the most impressive people fold like tissue paper when faced with algebra.  I know actors who can perform in front...

The ancient Romans personified luck as a gorgeous, jealous goddess named Fortuna. Whenever they would see a situation that involved chaos and danger, they would begin...

If I had my way, I would hop into a time machine and convince President Obama to spend the enormous political capital he had not...

We are going through a set of questions, perhaps SAT questions, and we look at a particularly difficult one.  The kid took a random guess...

A warning mantra on many fitness-oriented websites is, “Don’t dig a hole and put a ladder in it.”  In other words: don’t exercise and then...

The hilarious cartoon above is real, from the 1950s, and it shows how badly we get predictions wrong. They did not think about social change...

Depressed and anxious people are driven into identity enclaves on the internet, where they are radicalized by narcissists. We are Mentally Ill, You All are...

Questions I stumbled across a forum on reddit called, “Hapa,” which targeted half-Asian, half-white people.  I, myself, am half Asian Indian and half Italian-American (Mussolini...

“Self-Help” was self-published in 1861 in Britain, by Samuel Smiles, and was an instant success.  It sparked a huge, multi-billion-dollar genre that I had previously...

I am going to outline three core concepts of development economics  – appropriate technology, good governance, and the brain drain – that are immediately applicable...

Bold statement:  All Americans are lonely; some much more than others. A group of scientists are working on a pill to treat loneliness, which has...

A short analysis of the mental life created by social media and modern urban living. Imagine the life of a typical urban teenager: sitting on...

There is an epidemic of fake advice on the internet. The problem might be bigger and have a stronger impact than fake news. A professor...

Aha! It is one of the most pleasurable moments when working with someone one-on-one. You wait, and wait… they struggle… and then, the lightbulb. Oh...

Two San Francisco cardiologists, Ray Rosenman and Meyer Friedman, were talking to the man reupholstering the furniture in their waiting room. The man remarked that...

Bayard Rustin played a major part in almost every freedom movement of the middle of the 20th century.  His accomplishments are so numerous that they...

Statisticians who study education talk in terms of effect sizes, or standardized units. In education research, effect sizes of 0.2, or two tenths of a...