> What that seems to imply though is that expansion was literally faster than light. Yes? No?
No. No particle of matter outruns a light ray at the same location and moving in the same direction. Or, to put it another way, all pieces of matter are moving within the light cones at their spacetime locations. "Moving within the light cones" is the correct General Relativity version of "nothing goes faster than light".
The coordinate speed of pieces of matter can be greater than c, but in a curved spacetime that, in itself, is not a problem.
No. No particle of matter outruns a light ray at the same location and moving in the same direction. Or, to put it another way, all pieces of matter are moving within the light cones at their spacetime locations. "Moving within the light cones" is the correct General Relativity version of "nothing goes faster than light".
The coordinate speed of pieces of matter can be greater than c, but in a curved spacetime that, in itself, is not a problem.