Elon Musk says it's 'very, very hard to start a business and have it succeed' at Wisconsin town hall

Elon Musk held a town hall in Green Bay, Wisconsin on Sunday.

Jeffrey Phelps/AP

• Elon Musk said starting a business and having it succeed was "very, very hard."
• A company's prospects come down to how useful its products and services are, he said.
• Ensuring the value of the output exceeds the cost of the input is "shockingly hard," Musk added.

Elon Musk said it's "very, very hard to start a business and have it "succeed" in response to a question at a town hall in Wisconsin on Sunday.