McKesson, Chevron, and Tesla are among the biggest companies to leave California in recent years.

Duolingo is adding more paid subscribers and could benefit from a growing edtech market.

“I can’t wrap my head around it," says Andrew Wee, who has been a Silicon Valley data-center and hardware guy for 30 years.

Strib Voices publishes a mix of commentary online and in print each day. To contribute, click here. ••• “Politics ... had always been the systematic organization of hatreds.” Henry Adams, 1907 ••• One ...