Bill Gates once sold artificial intelligence as a force that could free people from drudgery and accelerate breakthroughs. Now he is warning that the same technology could hollow out work before governments have built a landing pad for those it displaces.

For years, the Microsoft cofounder’s public case for AI stressed better health care, education and scientific discovery. His newly sharpened stance marks a turn from that optimism toward a concern that leaders are letting technological change outrun social preparation. ¹ Elon Musk, meanwhile, amplified the opposing instinct in a repost: “While pessimism sounds smart, optimism makes money by turning life-changing technologies into reality.”Elon Musk (elonmusk)²

In Gates’s recent essay, the alarm is not limited to office workers. He argues that AI will first pressure roles such as customer support, software engineering and paralegal work, before increasingly capable robots reach physical work in construction and hospitality. “Many jobs will disappear forever,” he warned, while also cautioning that AI could empower fraudsters and weaken children’s real-world relationships.³

His response is unusually interventionist. Gates has proposed “Human Reserved” work: jobs or tasks society deliberately keeps in human hands, either permanently or long enough to give workers a realistic transition. Child care and jury service are among the examples, while health care and education could retain human authority alongside AI tools. “One is forever this job is done by humans,” Gates said of the model; another would offer temporary protection to workers who cannot plausibly start over late in their careers.⁴

He also wants governments to tax AI tokens and robots, arguing that payroll taxes punish employers for hiring people while machines can be written off. The revenue, Gates says, could slow automation’s rush and pay for retraining and a stronger safety net. Critics of his earlier robot-tax proposal, including former Treasury Secretary Larry Summers, countered that it risked becoming “protectionism against progress”; Gates replies that preserving work may justify “a little inefficiency.”⁵

The unresolved question is who gets to decide which jobs remain human—and whether countries can protect workers without surrendering ground to faster-moving competitors.