Good news: the Facebook group mentioned …

Good news: the Facebook group mentioned in today’s XKCD comic is now real:

Bad news: Facebook users are distressingly bad at constructing tautologies. From the group’s wall:

Thomas: Half of all people have below-average intellegence.

Franklin: Not necessarily true. The numbers 1, 2, 3, 100 have an average of 26, but three of them are below the average.