Stewart Butterfield, center, chief executive of Slack, at the company’s office in San Francisco, March 10, 2015. Many people see shades of the 2000 dot-com bubble, in the eye-popping valuations of companies like Slack and Uber.
Stewart Butterfield, center, chief executive of Slack, at the company’s office in San Francisco, March 10, 2015. Many people see shades of the 2000 dot-com bubble, in the eye-popping valuations of companies like Slack and Uber. JASON HENRY The New York Times
Stewart Butterfield, center, chief executive of Slack, at the company’s office in San Francisco, March 10, 2015. Many people see shades of the 2000 dot-com bubble, in the eye-popping valuations of companies like Slack and Uber. JASON HENRY The New York Times

Overvalued in Silicon Valley, but don’t say ‘tech bubble’

May 22, 2015 11:55 PM

UPDATED May 23, 2015 12:02 AM

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