The Workforce Is About to Change Dramatically

In March, tens of millions of American workers—mostly in white-collar industries such as tech, finance, and media—were thrust into a sudden, chaotic experiment in working from home. Four months later, the experiment isn’t close to ending. For many, the test run is looking more like the long run.

Google announced in July that its roughly 200,000 employees will continue to work from home until at least next summer. Mark Zuckerberg has said he expects half of Facebook’s workforce to be remote within the decade. Twitter has told staff they can...