The Big Rip, Is It Possible?

Whether the big rip happens or not depends on the kind, the type of dake dark energy we have in our universe. The time to this hypothetical big rip, how long, how far in the future could it happen? It depends on a number of a on anumber of parameters. If you take a different value of w, for instance, which we don't quite know yet,. So ifYou take a different, diferent value it, you could get a different time for the big rip. We may never have a big rip, and you will have a big crunch. But i'm sure that he must have come up with one of these er calculations. Whatewhatever it