How do I put this... The macro scale does seem to definitely be deterministic. So, my ego having a dislike for having it's world view challenged, does indeed have a tendency to prefer the deterministic school of thought. And we can always claim that any apparent randomness must instead be caused by other phenomena we can't measure yet, or possibly never will. But, I wouldn't dismiss an uncertain time line either.
I'm more interested in knowing what difference does it make to us, knowing that the future is certain, or not.