Does an electric charge "curve spacetime"? If theorists (starting with A. E.) can make a theory about spacetime curvature caused by mass (GR), couldn't there be a similar theory where some spacetime curvature is caused by electric charges? Both are [tex]F = k/r^2[/tex] in elementary physics. A postulate could be that an electron in an elevator (made of electons, or a negatively charged inside surface) cannot tell the difference whether : 1. the elevator is stopped and that there is a large + charge underneath or : 2. the elevator is accelerating upwards Where does this lead? What happens if you take magnetism into account?