Time Is Just F(r)iction

Send us Fan MailFor 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 the flow of entropy across that wall to build a working clock — one that kept perfect time even when the lab's own stopwatch couldn't.We walk through the Wheeler-DeWitt equation, why time vanishes from it, the "movie reel in a sealed tin" analogy for a static universe, and how this experiment translated 60-year-old theoretical debates into something you can photograph in a lab. And we end somewhere unexpectedly tender: on what it might mean, for you personally, if time really is just the record of things exchanging information with each other.📖 Read: https://helioxpodcast.substack.com🎥 YouTube: https://www.youtube.com/channel/UCd5BbCEeC3Z6dp-nNjWRbBw 🎙️Available for Broadcast: https://exchange.prx.org/group_accounts/253118-heliox_where_evidence_meets_empathy ReferencesTesting the problem of time with cold atomsThis is Heliox: Where Evidence Meets EmpathyIndependent, moderated, timely, deep, gentle, clinical, global, and community conversations about things that matter.  Breathe Easy, we go deep and lightly surface the big ideas. Support the showDisclosure: This podcast uses AI-generated synthetic voices for a material portion of the audio content, in line with Apple Podcasts guidelines. We make rigorous science accessible, accurate, and unforgettable.Produced by Michelle Bruecker and Scott Bleackley, it features reviews of emerging research and ideas from leading thinkers, curated under our creative direction with AI assistance for voice, imagery, and composition. Systemic voices and illustrative images of people are representative tools, not depictions of specific individuals.We dive deep into peer-reviewed research, pre-prints, and major scientific works—then bring them to life through the stories of the researchers themselves. Complex ideas become clear. Obscure discoveries become conversation starters. And you walk away understanding not just what scientists discovered, but why it matters and how they got there.Independent, moderated, timely, deep, gentle, clinical, global, and community conversations about things that matter.  Breathe Easy, we go deep and lightly surface the big ideas.Spoken word, short and sweet, with rhythm and a catchy beat.http://tinyurl.com/stonefolksongs