Matt Damon Isn't the Cure for Crypto's Crack Up

What social media giveth, it can also take away. After a year in which investors learned to watch Reddit for market sentiment, a deluge of online derision over Matt Damon’s cringe-inducing commercial for a cryptocurrency exchange poses a new challenge: how to measure scorn as an investment metric.

Paris-based Bloomberg Opinion columnist Lionel Laurent spoke with Bobby Ghosh about celebrity shills for crypto. This is a lightly edited version of their conversation.