When in 2015, Slack raised money at a $1 billion valuation, founder Stewart Butterfield spoke candidly about why it was important to him, and why if Slack wasn’t assigned a valuation north of that number at that point in time, Slack wouldn’t raise anything. Said Butterfield, speaking to Fortune, it “means that we’re a part … Continue reading Airtable CEO Howie Liu on the continued importance of getting a ‘unicorn’ valuation