[ben_w]

> So, either QED is wrong (extremely unlikely) or GR is wrong (unlikely)

Not my area, but I thought both were known to be incomplete? Q because it presumes a flat spacetime; R because it predicts the formation of singularities that the maths used to develop it assume don't exist?

[tsimionescu]

I think the general belief is that it will turn out that space time is actually approximately flat at small levels, so that QED will be essentially exactly correct, while GR will turn out not to apply past a certain small scale.