Our world is real as can be and we don't live in a computer simulation, yet our society is simulated.
Adam Smith said that the butcher and baker, act in self interest, and provide you with food, and their behaviour is similar with altruism.
Machiavelli recommended to the rulers to act as they are good people.
Sales people act that they care and that they are glad to see you.
Chat bots act as their are human.
But does it really matter if the simulation is convincing ?
Do we care of the feeling of salesman if he is polite wit us and send us what we need?
Do we care about the sincerity of the politician if he behaves as he should ?
Do we care if our spouse doesn't love us anymore if the behaviour doesn't change ?
If we need a low resolution reality, simulation is enough.