Slack chief executive Stewart Butterfield knew the world was changing the night of March 11, right around when Tom Hanks announced from Australia that he had contracted Covid-19. The NBA postponed its season, and President Trump suspended travel to the United States. Butterfield’s team had already been working virtually for a week–something that came fairly naturally to the business-communications-tool startup.
Seven months later, Slack still is fully remote. Butterfield has had the same jarring experience so many executives and knowledge-workers have had going into his company’s near-empty headquarters. “It was pretty strange to be in there,” he said, of the