Elon Musk says AI and robots will make money pointless in 10 years

Elon Musk told The Economist that robots and AI will soon make so much stuff money won't matter. Within ten years, he says, there will be such plenty that no one will need cash.

Why it mattersWhen Musk speaks about the future, investors, workers and policymakers listen and make plans based on what he says. But his predictions often don't come true.