A Slack investor predicts that any productivity startup that doesn't become a 'daily use tool' won't have the 'engagement' to survive whatever comes next in the market (WORK)

· Index Ventures partner Sarah Cannon said that enterprise and productivity startups may not be able to weather an upcoming economic downturn — despite the current hype around remote-work tools like Slack and Zoom.
· That's contrary to the view of many other VCs, who think that this is the time for productivity startups to...