Barbour Science

The Snowden Affair, Wikileaks, the 'lone wolf' terrorist, Clinton's private email account - the secret is arguably the central element of our contemporary political experience. Now, Charles Barbour looks at the basic ontological question 'what is a secret?'

Richard Feynman once quipped: "Time is what happens when nothing else does." But Julian Barbour disagrees: if nothing happened, if nothing changed, time would stop. For time is nothing but change. It is change that we perceive occurring all around us, not time. In fact, time doesn't exist.