Karri Saarinen, CEO of Linear, which makes software to streamline product development and has a $1.25 billion valuation, tells Fast Company why he’s bucking the trend of AI companies’ ‘hardcore,’ always-on work styles. As startups race to keep up with advances in artificial intelligence, some of them seem to be borrowing from China’s exacting work culture—which normalized a 72-hour workweek, or a “996” schedule of working six days a week from 9 a.m. to 9 p.m.