Reply to post: Re: Riddle me this:

H0LiCOW: Cosmoboffins still have no idea why universe seems to be expanding more rapidly than expected

Carpet Deal 'em Bronze badge

Re: Riddle me this:

My understanding is that the Big Rip requires cosmic expansion to speed up to a rather large degree, since the expansionary force needs to grow a lot stronger in order to overcome the contractionary forces. The Hubble Tension might be proof this is in fact happening, if it isn't a measurement error.

On the other hand, if the four known forces are getting stronger as well, we might manage a Big Crunch in spite of all the current evidence.

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