Millennials have a fresh take on the FIRE movement, and it's less about taking it easy in retirement

Andrea Chronopoulos for BI

At age 36, Jace Mattinson is already over retirement. Four years ago, he sold his lumber company for seven figures, and he had enough saved that he never needed to work again.

He said that was an enticing idea after five "extremely tough" years of owning a business. During that time, he was away from his home in Austin a few nights a week and hustling to run the 135-year-old company he'd acquired. After selling the company, he needed a long break from anything laborious.