Top Physicist Admits She Does Not Believe UFO Sightings Are Alien Contact
"I don't know. I wish, I wish they were real. It'd be cooler. But no, I don't think— I, I believe in aliens, but I don't believe in, like, aliens that have contacted us. I think it's all bullshit. All of it."
About this episode
Sean Ryan interviewed Sabrina Gonzalez Pasterski, a 32-year-old theoretical physicist leading the Celestial Holography Initiative at Canada's Perimeter Institute, in a wide-ranging conversation covering her unconventional path into physics, her controversial public reputation, and her cutting-edge work attempting to prove the universe is a hologram. Pasterski, who built a functioning airplane between ages 12 and 14 and was initially rejected by Harvard before getting off the MIT waitlist, explained that she entered physics not out of passion for the field but because her aerospace heroes—Elon Musk and Jeff Bezos—liked physics. Dubbed the 'next Einstein' by media in 2015, she admitted the label is undeserved, has hurt her standing within the insular string theory community, and benefits her too much. The core of the episode focused on her research into celestial holography and gravitational memory effects: the idea that spacetime events leave permanent 'indentions' in the fabric of space and that the entire 4D universe can be encoded as information on a 2D boundary, analogous to a hologram. Pasterski described her early collaboration with Stephen Hawking and her discovery of the spin memory effect, which relates angular momentum loss in colliding black holes to observable shifts in distant detectors. She discussed the tension between quantum mechanics and general relativity and explained how holographic principles—imported from string theory and black hole thermodynamics—may unite them. Pasterski was candid about disillusionment with both academia and tech hype, revealing she once resented figures like Elon Musk for over-promising on quantum computing and other buzzword-driven ventures, but has since become enthusiastic about AI coding tools like Claude, which allow her to prototype research software without hiring developers. She addressed the US-China physics race, asserting the US remains ahead but acknowledging China's ability to fund large experiments through top-down governance. On UFOs, she dismissed sightings as likely misidentifications or classified tech, saying she wishes aliens were real but sees no evidence of contact. The episode closed with her vision for using AI to parse and compress the vast corpus of theoretical physics research, moving the field away from isolated individual breakthroughs toward collaborative, systematic progress.
Key takeaways
- Pasterski leads Celestial Holography Initiative aiming to prove the universe is literally a hologram projected from a 2D boundary surface.
- She admitted the 'next Einstein' media label from 2015 is undeserved, hurt her career, and emerged from clickbait during girl-boss trend.
- Pasterski discovered spin memory effect with Hawking, showing black hole collisions leave permanent spacetime imprints detectable by gravitational wave observatories.
- She was deeply skeptical of quantum computing hype but became enthusiastic when AI coding tools proved genuinely useful for research prototyping.
- Pasterski stated US leads China in physics but noted China's top-down funding allows experiments US taxpayers will not prioritize.
- She dismissed UFO sightings including Nimitz incident as likely optical illusions or military tech, saying she wishes aliens were real.
- Pasterski rejected Harvard initially, built airplane ages 12-14, entered physics to impress Musk and Bezos rather than passion for field.