Lucy Guo is no stranger to the always-on culture that defines Silicon Valley startups. In fact, it was partly this mentality that made her a billionaire by the time she turned 30, having made a fortune from the sale of her startup Scale AI to Meta.

Yet, at a time when AI and autonomous agents have promised to make every worker’s life easier, Guo says, for some, it’s doing the opposite.

“I think AI is making people work harder actually because you have to be awake for your agents to be running,” Guo said in an interview on the Fortune Daily Show this week. “I think it was last week I worked a 26-hour day because I refused to go to sleep.” READ MORE