Sir

In the News story “Ig Nobel glory for levitating frogs and collapsing toilets” (Nature 407, 665; 2000), my name, listed as one of the co-winners of the Ig Nobel psychology prize for the paper “Unskilled and unaware of it: How difficulties in recognizing one's own incompetence leads to inflated self-assessments”, was misspelt — as it is on the Ig Nobel website. It is Kruger, not Kreuger.

This accident is hardly surprising, however, in light of our topic. It can be very difficult to spot one's own mistakes.