What if I could produce an experiment that concluded that
listening to an old song could make you younger? Not feel younger, but be
younger. Impossible, of course, but the story of how this can be achieved is a
great example of how easy it is to produce statistically significant findings
in science. All you need is enough 'wriggle room' in the data and a pre-conceived notion of what the results will be. Like ghosts in The Sixth Sense,
scientists often only see what they want to see.