faisent t1_ivtiyxo wrote on November 10, 2022 at 2:35 PM Reply to comment by [deleted] in A first-of-its-kind experiment simulating the cosmos with ultracold potassium atoms suggests that in a curved, expanding universe pairs of particles pop up out of empty space by marketrent It is, but its also traveling at c so as long as its moving away it won't cross the horizon. It could also be created so its moving towards the horizon as well and there's no change in the system. Permalink Parent 2
faisent t1_ivtiyxo wrote
Reply to comment by [deleted] in A first-of-its-kind experiment simulating the cosmos with ultracold potassium atoms suggests that in a curved, expanding universe pairs of particles pop up out of empty space by marketrent
It is, but its also traveling at c so as long as its moving away it won't cross the horizon. It could also be created so its moving towards the horizon as well and there's no change in the system.