Biology is insanely complicated. Simulating that to any degree of fidelity is really, really, hard - at least in medically interesting domains. (E.g. we don't

Biology is insanely complicated. Simulating that to any degree of fidelity is really, really, hard - at least in medically interesting domains. (E.g. we don't even have a simple model that given some parameterized human as input and a simulated macro diet can predict their body mass...)