Opinion | Know Thyself, but Don’t Think There’s an App for That

‘Know thyself” is the philosopher’s perennial suggestion, the beginning and end of wisdom. It seems simple, but we regularly fail

Read more

Opinion | C-120 Cassettes Taught Me Econ 101

Lou Ottens, the Dutch inventor of the audiocassette tape, died this month at 94. I wish I had occasion to

Read more

Opinion | Rare Truths About China’s Rare Earths

Looks like it’s time for another panic about rare-earth elements. New fears are surfacing that Beijing could use its dominance

Read more

Opinion | Software Ate the World, and Soon It Will Write Itself

‘Software is eating the world,” tech investor Marc Andreessenobserved in these pages in 2011. Now software is writing itself. Mr.

Read more