They say that somewhere out on the web there is a site that caters to people who believe the 9/11 attack was instigated by the US government.

The principal feature of the site, it is said, is a survey about how you think the government managed to pull this off.

The site claims that, if you complete the survey truthfully, its program can analyze your answers and predict with great accuracy how many Hollywood movies you have watched over the last few years and, so they claim, pinpoint which movies were your favorites.

One final question on the survey asks whether you believe the program will be accurate in its predictions. Most participants answer “yes” to that question.