Wow you're good at missing the point. We (Americans) are "leeching" off everyone else, and they're leeching off us. Who invented gunpowder, the crossbow, stirr

Wow you're good at missing the point. We (Americans) are "leeching" off everyone else, and they're leeching off us. Who invented gunpowder, the crossbow, stirrups, the printing press, noodles? The Chinese. Who invented radio, quantum mechanics, the computer, programming languages, symbolic logic? Hint: not Americans. This leeching is pretty much how humans make progress.