What is truth? Some things are true whether you believe in them or not. Water boils at 100°C. Smoking kills. President Kennedy was assassinated in Dallas on 22 November 1963. Other things have the potential to be true, if we believe in them. Our belief becomes what sociologists dub a self-fulfilling prophecy: if you predict a bank will go bust and that convinces lots of people to close their accounts, then, sure enough, the bank will go bust.
