I couldn't take a furnace and figure out any way to double the heat, let alone multiply it seven times. And that was done by Nebuchadnezzer. Tackle that one with physics and math. The point is that you and I both have made every attempt to take the biblical account of Genesis and remove all elements of God's interaction that do not fall within the boundaries of scientific explanation. I know why I do it.
Scientists have an absolute disdain for any explanatory powers of miracles.
If we wish to invoke a miracle for everything we can't explain it impedes all inquiry to find what may be simple natural causes. And that is a valid complaint. The other reason is that we don't see any obvious miraculous intervention involved in the Genesis account. However, I must admit I have never seen a talking snake. I don't know anyone who has.