Time Is Just F(r)iction

Send us Fan Mail For decades, one of physics' strangest open questions has been whether time is fundamental at all — or whether it only emerges once you stop looking at the whole universe and start looking at how its parts talk to each other. In this episode of Heliox, we dig into a real 2026 paper out of the University of Birmingham, where physicist Giovanni Barontini built a working miniature universe from 24,000 ultracold rubidium atoms, split it in two with a wall of light, and used...