Your definition of "observable" seems to be extremely limited. The only way something can be observable, in your view, is if a human being actually saw it occur. So, anything before the existence of human begins (and a system of writing) cannot be observed.
I believe in the beginning God... and you believe in the beginning dirt...don't tell me your belief is based on science and not religion.
Don't presume to tell me what I believe. Just because I don't buy a simplistic, literalist reading of Genesis doesn't mean I don't believe in God.
No, you've misinterpreted what I mean, although I can see why you would think this...let me explain.
Tree and ice rings, eventhough observable, do not neccessarily indicate annual growth. Thus it can not be argued as FACT to decipher the age of anything.
So, since you don't buy a simplistic, literal view of scripture I guess life is a metaphor for you?
Tell me, how long is a day in your time?