Whither Determinism?

Robert P. Geroch
Department of Physics, University of Chicago


Determinism -- the idea of predicting what will happen in the future from what is happening in the present -- plays a fundamental role in the way we think about the physical World. Not surprisingly, then, it also plays a fundamental role in the theories we devise to describe that World: special and general relativity, and even Newtonian mechanics and quantum mechanics. But each of these physical theories, in its own distinctive way, requires that the notion of determinism, as originally conceived, be modified to fit that theory. What finally emerges from this process is a far cry from the original conception.