[Junior]

Except the observed possible variation in the speed of light is on the order of a few percent, not 10¹¹. An entire thread occured on this very subject in the recent past. Also, your article implies that all cosmologists wish the speed of light to have been higher in the past (coincidentally agreeing with creationists). However, most cosmologists (judging from the stuff they publish) are quite happy with a constant c; only a very few of them seem at all dissatisfied.

[MHGinTN]

The 'observed' speed ... thus the naysayers argue that 'we have yet to observe from a different temporal reference when and distant past speed could easily have been faster'. The physics inside a black hole makes an acceleration of light speed quite possible, it's assumed as a constant max for the purposes of calculation, but even Hawking wouldn't claim it is a fix law inside black holes and near the surface of neutron stars.

[PatrickHenry]

Placemarker.