Property rights exist due to the laws of physics allowing them to be enforced. If you physically possess a car, you can use it, and if someone steals it, the p

Property rights exist due to the laws of physics allowing them to be enforced. If you physically possess a car, you can use it, and if someone steals it, the police can go physically take it away from them and return it to you. You can't meaningfully enforce intellectual property rights in the general case. If someone learns the secret KFC recipe, you can't take it away from them.