Some good responses
No, that's not sarcasm either. I'd like to think that I'm generally sane, although I do have Asperger's and Bipolar Affective Disorder.
As for figures, well divide 5 billion years by the distance the earth is from the moon (average distance is fine or you could use apogee or perigee) and you'll be close to the annual regression of the moon. I'm not giving you all the figures I expect you to do some research yourselves.
Another conundrum is population. If mankind has been around for well over 6,000 years then population would be in the trillions. If the world population doubled every 150 years we'd be at a population around 6 billion after 4,800 years (32 doublings).
My belief in the power of faith is based both on my subjective experience of becoming a Christian over 25 years ago which changed my life and the objective surveys that have found that having a faith is better for your health. For example see the HEA statement - http://news.bbc.co.uk/1/hi/health/462748.stm. I base it on the historical evidence of the existence of Jesus, not just because I was told to believe it. On the contrary I had very little spiritual input in my childhood.
As for Westboro Baptist Church (and others like them) they do not represent the majority view of Christians. They should be locked up for inciting hatred, the irresponsible sociopaths that they are. They are just like the Pharisees of Jesus' day.