[tim333]

To me science is more than a tool to make predictions - it's a way of trying to figure out what's going on using experiment, reason and the like. Maybe there are multiple universes or not and maybe we'll be able to test it or not. Who knows, reality is what it is.

[oceanghost]

That's called scientism, and its often conflated with science.

Just because a theory makes correct predictions, does not mean, necessarily that those mechanisms exist in the actual physical universe. It is entirely possible to make correct predictions with incorrect models.