Also, I don’t really know why people think the ANEC or something similar has to be true.
My impression is that its because if it is violated, you get a bunch of crazy shit, like warp drives and perpetual motion (without breaking energy conservation). Plus, it makes the math a lot easier. You need some boundary condition to apply the field equations, and that’s an extremely reasonable one.
My impression is that its because if it is violated, you get a bunch of crazy shit, like warp drives and perpetual motion (without breaking energy conservation). Plus, it makes the math a lot easier. You need some boundary condition to apply the field equations, and that’s an extremely reasonable one.