When Prophecy Failed in July 2025, Japan: Who Believed and How Did They React to Disconfirmation?

Abstract

A widely publicized prophecy proclaiming that a major disaster would strike Japan on July 5, 2025 was disconfirmed, providing a rare opportunity to examine public reactions to a failed prophecy. Two surveys were administered before (July 3) and after (July 10) the predicted date; Japanese adults who completed both waves (N = 318) provided matched pre–post data. We first tested prophecy belief by relating pre-survey belief to individual differences in reflective thinking, scientific reasoning, and conspiracy mentality. We subsequently assessed hindsight and retrospective biases by comparing pre- and post-July 5 belief ratings, anxiety, and precautionary actions (stockpiling, schedule changes, information sharing). Finally, we evaluated “moving the goal-post” using linear mixed-effects models predicting three prophecy-fulfillment criteria (casualties, location, temporal window) using survey time, pre-survey belief, and their interactions. Pre-survey belief was negatively related to reflective thinking and scientific reasoning and positively related to conspiracy mentality. Paired-samples t-tests yielded a pattern consistent with memory reconstruction: after learning that the prophecy failed, participants recalled lower pre-prophecy belief, anxiety, and precautionary actions than initially reported. In the mixed-effects models, evidence of goal-post moving emerged only for the temporal window criterion: the effect of time was significantly positive at high (+1 SD) prior belief but non-significant at low (-1 SD); no interactions appeared for casualties or location. Overall, susceptibility to unfounded claims varied with cognitive style and conspiracy mentality, and learning that the prophecy failed led to post-hoc changes in both recollection and evaluative criteria.