What would happen if the speed of light was fundamentally faster?

Now maybe this belongs in physics, but I want it here because I'm interested in the impacts on our society if the speed of light (c) were to be 2x faster since the big bang.

My first thoughts were about how this would impact our energy and e=mc^2, which would mean the entire universe would be in a higher state of energy, but what would this actually mean for us in terms of consequences?

TO CLARIFY:

In this new universe: c is twice as big as c in our universe. Other than that, everything stays the same, in terms of universal constants. I don't want a response as to why this would not work or why I have got some semantics wrong, this is a "what if" style question, I want crazy and wonderful answers!

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What would happen if the speed of light was fundamentally faster?

TO CLARIFY:

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