One by one, some of the biggest names in tech are publicly supporting the idea of giving cash handouts to all Americans.

The latest is self-made multimillionaire Stewart Butterfield, the CEO and co-founder of the workplace chat program Slack, which is reportedly in the process of raising $500 million at a $5 billion valuation. Butterfield also co-founded Flickr, which sold to Yahoo, reportedly for $35 million.