“Upends” is a strong word for “a bit more interconnected than we thought.”
It looks like the previous model is still broadly correct—there are just more signal crossings than initially accounted for.
Which, like… yeah. No shit.
This is good progress on understanding the brain. It isn’t disproving phlogiston or anything, though.
True. The em field is significantly more energetic, meaning that it contributes more to the stress energy tensor than the force of gravity
But recall that the force of gravity is the momentum change “due to” the curvature of spacetime. The fact that the force of gravity can bend spacetime at all is a really weird second-order perturbative effect.
These perturbative effects are typically described with a quantum field theory, but gravity has been thus far notably difficult to quantize.
It does. The energy density of the em field will contribute to the stress-energy tensor that changes the metric of spacetime.
Though the force itself is irrelevant
The electric field curves it insofar as any energy curves it. The force exerted by the em field is independent of this curvature, though.