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> Also, can you simulate a brain without a body or is say hormones/blood sugar/nervous system not easily separable?

Even if those systems are integral to brain function, I'd assume that they are easier to simulate than the brain itself. Is it important to build a "brain simulation" instead of a "full body simulation"?

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I agree you could just go on to a full body simulation - I guess you have to somehow decide what level of accuracy is needed for the key features. You're not going to be able to do chemistry-level simulations of your whole body, so you'll have to make higher level simulations of different parts (like here's a function that describes insulin reaction as a response to blood sugar function)

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