Exactly - but if you take it from a simulated world to the real world without re-training (and it's real hard to train in the real world) it's going to behave a

Exactly - but if you take it from a simulated world to the real world without re-training (and it's real hard to train in the real world) it's going to behave according to the rules learned in the simulated world. Which will be different and thus produce results that are weird to us.