Google cofounder Sergey Brin’s unretirement is a lesson for the rest of us  

When Sergey Brin spoke at Stanford University’s school of engineering centennial celebration recently, the Google co-founder was open about his career mistakes.

“When you have your cool new wearable device idea, really fully bake it before you have a cool stunt involving skydiving and airships,” he joked, referring to the infamous Google Glass flop. But one misstep he admitted to might surprise a lot of people who dream of the day they can quit their 9-to-5. 

“I actually retired like a month before COVID hit...