This is the fundamental reason why general AI might not be possible on a computer without a body. To infer causality, you must form a hypothesis then design an

This is the fundamental reason why general AI might not be possible on a computer without a body. To infer causality, you must form a hypothesis then design an experiment to confirm/deny it. Passively observing the world can't disambiguate between complex correlations or causality (even with a fancy calculus). You need action to learn the intricacies of the world. Think how the discovery of electricity led to electronics. There is nothing like electronics in the natural world, the only route to electronics is via an iteratively refined causal model of the universe.