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New Theory Explains How Time Began

Sabine Hossenfelder May 5, 2026 15:00
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For 72 hours, enjoy 15% OFF on all Hoverpens with code SABINE, or click on the link https://noviumdesign.shop/sabine - Free shipping to most countries. Also on Amazon: https://noviumdesign.shop/jTAp1f The biggest open problem in the foundations of physics is that Einstein’s theory of gravity, General Relativity, does not cooperate with quantum mechanics. Physicists have tried to solve this issue by coming up with a theory of quantum gravity, but those theories fall apart when you need them most – inside of black holes and at the Big Bang. Recently, though, physicists published a new calculation for the Big Bang, with a theory called quadratic gravity, which lets us skip over quantum gravity entirely, and that could explain the origin of time. Let’s take a look. Paper: https://journals.aps.org/prl/abstract/10.1103/6gtx-j455 👕T-shirts, mugs, posters and more: ➜ https://sabines-store.dashery.com/ 💌 Support me on Donorbox ➜ https://donorbox.org/swtg 👉 Transcript with links to references on Patreon ➜ https://www.patreon.com/Sabine 📝 Transcripts and written news on Substack ➜ https://sciencewtg.substack.com/ 📩 Free weekly science newsletter ➜ https://sabinehossenfelder.com/newsletter/ 👂 Audio only podcast ➜ https://open.spotify.com/show/0MkNfXlKnMPEUMEeKQYmYC 🔗 Join this channel to get access to perks ➜ https://www.youtube.com/channel/UC1yNl2E66ZzKApQdRuTQ4tw/join 📚 Buy my book ➜ https://amzn.to/3HSAWJW #science #sciencenews #physics #gravity This video discusses a new explanation for the beginning of the universe, published in PRL, which addresses quantum gravity and the period before time began. It features a presenter discussing "Asymptotically Safe Gravity" and includes scientific graphics and charts related to cosmological research. This new idea elegantly addresses the origin of the universe and offers a fresh perspective on space time, making it a significant contribution to science news.
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