It's not just parts though. The car analogy is more like, I can't drive my car to your house because your house was built by BMW and my car is an Audi. It's lik

It's not just parts though. The car analogy is more like, I can't drive my car to your house because your house was built by BMW and my car is an Audi. It's like we all live in corporate-controlled subdivisions with proprietary, incompatible rail lines instead of roads.