# Aephraim Steinberg: The Physicist Who Measured Negative Time

Page: https://stenobird.com/podcast/theories-of-everything-with-curt-jaimungal-380149/aephraim-steinberg-the-physicist-who-measured-negative-time
Text version: https://stenobird.com/podcast/theories-of-everything-with-curt-jaimungal-380149/aephraim-steinberg-the-physicist-who-measured-negative-time.md
Podcast: [Theories of Everything with Curt Jaimungal](https://stenobird.com/podcast/theories-of-everything-with-curt-jaimungal-380149)
Published: 2026-04-13T15:25:00+00:00
Episode link: https://s.gum.fm/s-62d83916a854b1cc0031878d/pscrb.fm/rss/p/traffic.megaphone.fm/TEMI6731135926.mp3?updated=1776095261
Audio file: https://s.gum.fm/s-62d83916a854b1cc0031878d/pscrb.fm/rss/p/traffic.megaphone.fm/TEMI6731135926.mp3?updated=1776095261
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Duration seconds: 8849

## Resource

SPONSORS: - Go to https://expressvpn.com/theoriesofeverythingyt to find out how you can get up to 4 extra months thanks to our sponsor, ExpressVPN - Accelerate your efficiency. Sign up for your one-dollar-per-month trial today at http://shopify.com/theories - I subscribe to The Economist for their science and tech coverage. As a TOE listener, get 35% off! No other podcast has this: https://economist.com/TOE This conversation belongs in a category I wish were larger on this channel: the experimentalist who also thinks (deeply) about foundations. Professor Aephraim Steinberg, winner of Physics World’s Breakthrough of the Year in 2011, is that species! For basically 30 years, he’s been measuring aspects of physics that others wouldn’t touch: Bohmian trajectories, Heisenberg’s disturbance bound (he showed it was wrong), even where the photon is inside the double slit (which most textbooks will tell you is impossible). His lab measured negative time — and it keeps reappearing across completely different experiments, stubbornly suggesting it means something. FOLLOW: - Spotify: https://open.spotify.com/show/4gL14b92xAErofYQA7bU4e - Substack: https://curtjaimungal.substack.com/subscribe - Twitter: https://twitter.com/TOEwithCurt - Discord Invite: https://discord.com/invite/kBcnfNVwqs - Crypto: https://commerce.coinbase.com/checkout/de803625-87d3-4300-ab6d-85d4258834a9 - PayPal: https://www.paypal.com/donate?hosted_button_id=XUBHNMFXUX5S4 TIMESTAMPS: - 00:00:00 - Defining Negative Time - 00:06:50 - Quantum Trajectory Theory - 00:12:44 - The Holland Tunnel Analogy - 00:18:40 - Resonant Atomic Interactions - 00:26:05 - Superluminal Energy Propagation - 00:32:00 - Eight Velocities of Light - 00:38:00 - Causality and Retrocausality - 00:44:00 - Dwell Time vs. Delay - 00:50:24 - Tim…

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