Now we want to take things a step further, and see whether our measure correlates with the ability to make accurate estimates of future events. To this end we’ve created a “prediction game” at http://www.projectionpoint.com/prediction_game.php. The basic idea is the same; we provide you with a bunch of statements, and your task is to say how likely you think it is that each one is true. The difference is that these statements refer not to known facts, but to future events. Unlike the first test, nobody knows whether these statements are true or false yet. For most of them, we won’t know until the end of the year 2010.

For example, how likely do you think it is that this year will be the hottest on record? If you think this is very unlikely you might select the 10% category. If you think it is quite likely, but not very likely, you might put the chances at 60% or 70%. Selecting the 50% category would mean that you had no idea how likely it is.

This is ongoing research, so please feel free to comment, criticise or make suggestions.