AI experts put 18 risk categories above a double-digit catastrophic-harm threshold
A three-round Delphi study asked 272 AI specialists from 37 countries to assess 24 risk categories over five years. Under current trajectories, the group placed 18 categories above a 10 percent probability of catastrophic harm as the study defined it; with pragmatic mitigation, five remained above that threshold. The categories overlap and the estimates are structured expert judgments, not independent probabilities or a prediction that catastrophe will occur. The signal is still difficult to dismiss: dangerous capabilities, AI-enabled weapons and cyberattacks, competitive pressure, concentrated power, and sophisticated false information ranked among the most severe concerns, while the public was expected to bear consequences it has limited power to prevent.