Some of the biggest names in business share the same worry for tomorrow's workforce — that robots will take a record number of jobs from humans.

As MarketWatch reports, both Facebook co-founder and CEO Mark Zuckerberg and Microsoft co-founder Bill Gates have expressed concerns about automation at its effects on the labor market.

Another billionaire, Mark Cuban, who made his fortune in tech, says technology will force many people into unemployment over the next few decades.

"I'm willing to bet that these companies building new plants ... this will lead to fewer people being employed," Cuban told CNBC in an interview, adding that "people aren't going to have jobs."