The discussion revolves around the Variable Speed of Light (VSL) theory as an alternative to inflation, particularly its implications for special relativity and related cosmological problems such as the horizon problem, relic particle problem, and flatness problem. Participants explore whether special relativity would still apply with a varying speed of light and the challenges associated with the VSL model.
Participants do not reach a consensus on the implications of VSL theory for special relativity, with multiple competing views and uncertainties remaining about its validity and predictive power.
Limitations include the lack of observational evidence supporting VSL theory, unresolved questions about its predictions, and the dependence on specific definitions of light speed and mass in varying contexts.
From what I've been able to gather, the people who were working on this a few years back largely just lost interest in it, as it didn't seem that likely, so the idea was never fully-developed. One of the main difficulties with this sort of model is that it is very difficult to produce reheating.Mr. Burns said:I was reading about the VSL theory as an alternative solution to inflation that solves the horizon problem. My question is, wouldn't special relativity still hold true, just to a different value of c in the early universe? As in, if we have a varying value of c, wouldn't it still hold true that mass would increase as it neared c?