WORTHLESS A P value is the probability of recording a result as large or more extreme than the observed data if there is in fact no real effect. P values are not a reliable measure of evidence.

S. Goodman, adapted by A. Nandy

Just as Achilles' heel was an unguarded weakness that ultimately brought down a hero of Greek mythology, dogmatic devotion to traditional statistical methods threatens public confidence in the institution of science.

philly077/istockphoto

Mathematician John Nash died in a car accident May 23 at the age of 86, ending a dramatic story of genius.