i was at the national museum in chambers street edinburgh 5 years ago and watched a very interesting film about the universe and how it started. they said it began with the big bang 13.7 billion years ago. however, when i went back last year it was still saying the same figure - with no adjustment for the intervening 4 years. and they are supposed to be scientists! clearly we cannot trust their dating system to be accurate so it must just be guesswork - ie they don't know. this is all the proof we need for the existence of a creator god.