Before the Trillions, There Was Once Joy in Silicon Valley

A veteran of three tech eras on how the innocence was lost — and whether AI actually might win it back, through what he calls “enlightened AI.” Recently, on WhoWhatWhy podcast , Matthew Stepka — early internet-café founder, McKinsey alum, nine-year Google veteran who shepherded many of the company’s mission projects including the first self-driving cars, and now an investor in what he calls…