Update 2/28/07: Welcome visitors from Digg.com. I just wanted to take a moment and reiterate that the image below isn’t of my creation, but was created by the fine folks over at Grey’s Journal and that they deserve all the credit for how clever it is. I merely wanted to share it with my readers.
The following flowcharts are a simple and accurate illustration of the difference between Science and Faith as tools for understanding the Universe. Click them for a bigger version:
From Grey’s Journal found via Boing Boing.


















Indeed we need science to explain the physical universe, and blind faith requires no understanding as an easy cop-out.
Science itself, if it is to be a completely self-explaining description with no support from faith, as far as I can see it needs to explain why the laws exist, not just that they do and their accumulated effects on what we observe - further to this it needs to explain why the same fundamental laws keep existing and why they always apply to the extent they do - it violates probability for a physical constant to be constant if there were no other controlling factors - but what in physics would control it?
I think it’s helpful to try to get into the psychology of a hypothetical god - why bother making people exist? If you’re going to create people why not make them perfect from the start, would he have reason to view something as right or wrong? why would he prefer people to do good things as people of faith generally hypothesise?
People of faith have told me that in their view human reasoning is disliked by god - I think this is using a fear barrier to stop people venturing beyond faith. People of faith have also told me in that in their view exceptions can be made, breaking the rules of science, in order to explain free will (which I was trying to say we shouldn’t have if position, speed and angle of all the brain-chemicals instigating a nerve impulse were pre-determined)
One interesting idea is that the physical universe is imaginary - a kind of ‘the matrix’ idea only without necessarily needing a computer to do it - but what you must conclude is that the level of reality above you, if existing, needs more data storage and processing ability than the one you’re in because the one you’re in would be completely contained within something larger. You only know for certain that you exist in a real system when the data is infinite - and so can’t be contained within a higher level of reality.
Imaginary universes could exist in parelel and not affect each other, and you don’t need an imaginer entity for the first set because you can have results in a system that’s oblivious to it’s own existence (like a non-living lump of matter), only interpretable by those who aren’t oblivious (anything able to see, feel, or otherwise detect the environment, not necessarily concious - could be a plant)