Preliminary analysis of 9-11-01 anomaly
in the GotPsi.com ESP Card Test psi game

The first graph shows a sliding monthly average of daily psi performance in the form of z scores (standard normal deviations from chance). The anomaly appears as an unexpected drop in z scores starting two weeks before 911, which is shown as a dotted line. Statistical analysis based on a nonparametric bootstrap technique indicates that the probability of observing such a drop within two weeks of a specified date is p = 0.0002. The second graph shows the odds against chance (two-tailed) associated with the z scores in the first graph.

One speculative way to interpret this observation is that the game players, and probably lots of other people, began to unconsciously sense that something bad was going to happen a few weeks before 911. They repressed those bad feelings (because who wants to consciously dwell on bad news?), and in the process they also repressed their psi perception in general. That is, on average the players were still as psychic as before, but now they were unconsciously motivated to avoid their psi perceptions. This resulted in the observed "psi-missing" effect two weeks prior to 911.