The problem with that idea is that the human body exists via evolutionary fitness for gravitational stress. Imagine a mechanical arm whose purpose is to put co

The problem with that idea is that the human body exists via evolutionary fitness for gravitational stress. Imagine a mechanical arm whose purpose is to put constant hydraulic pressure against a platform that is putting pressure towards the arm. Now imagine what happens when you take away the platform - the arm would likely damage itself unless specifically designed to handle the lack of pressure.