〈 Berger | Dillon 〉

@InertialObservr is it possible for time to go from (-infinity,infinity)?

Sure, t is just a continuous parameter.

Just to be clear, could that happen physically? I won’t be so surprise if it works well mathematically but physically?

There is nothing “physical” about t=0.. it’s just what we choose to be the “start” 1/2

Having said that, the interval you asked about is non compact in both directions, which I suppose may have physical implications.. I would say no, because time (as we know it) is only non compact in one direction (as far as we know)

Here’s why I ask, An apologetic argued that “if the past were infinite, it wouldn't have a beginning, which is impossible, therefore the universe had a beginning” Mathematically, it doesn’t make sense but idk about the universe.