When does life begin?—Materialism.  

"and you think this phenenomena you call "life" ( and consciousness for the matter)  is an emergent property of blind naturalistic evolution?"

Occam's razor: "entities should not be multiplied beyond necessity" 

There is no necessity of a supernatural force in the origin of life or consciousness. If there is a lack of a rational natural explanation at this point, that only shows that our science is not perfect. Radio communication would have been miraculous not very long ago. Why must you assume that a supernatural force is responsible for unexplained and no other is acceptable?

Suppose, as I do, that God did create the universe and all it contains. How would it appear to have been done? By what seem to be natural processes. You might believe otherwise, but you will never be able to prove it. There are very few documented unexplained historic miracles.

Because miracles require faith and the enemy of faith is fact. Once it's fact, it is not faith.