Scientific determinism is the idea that with enough information about the state of objects/particles around you, you can predict the resulting future events using sufficiently advanced scientific models. One problem with Scientific Determinism is that you can never know the position and velocity of a particle at a given instant due to the
Uncertainty Principle. Just because we cannot know enough to know our fate doesn't mean we aren't still governed by it. The scientific model of life as a series of chemical reactions and the notion that matter's behavior in the universe is dictated by reliable forces implies that choice is an illusion. No matter how complicated the series of events that leads to someone making a choice each of those events was the natural result of every event that occurred before it.
On the other hand we have an argument that is centuries old. How can an omnipotent God(s) exist and the result of that God(s) choice and every event leading up to those results not be known to that God(s)? In short, if God(s) is omnipotent then we cannot choose anything because the result of our choice is already known as was the choice itself. The historic answer to this is the contradictory: "God(s) can make choice because God(s) is omnipotent".
This leaves us with:
1. Science implies that choice is an illusion
2. Religion implies that choice is an illusion unless God(s) creates a paradox allowing choice
3. I'm wrong about what I've written above