It may very well turn out that probabilistic approximation would be 1000000x cheaper to compute than the deterministic precise theory.
Or even better, even formulating the deterministic theory would require 1000000x energy than approximation. And that's how'd we learn that biological minds do the same trick and skip the hard work :-)
Or even better, even formulating the deterministic theory would require 1000000x energy than approximation. And that's how'd we learn that biological minds do the same trick and skip the hard work :-)