What's New in Science With Sabine and Lawrence
The Origins Podcast with Lawrence Krauss
Lawrence M. Krauss
4.4 • 592 Ratings
🗓️ 7 July 2025
⏱️ 72 minutes
🧾️ Download transcript
Summary
I’m excited to announce the fifth episode of our new series, What’s New in Science, co-hosted by Sabine Hossenfelder. Once again, Sabine and I each brought a few recent science stories to the table, and we took turns introducing them before diving into thoughtful discussions. It’s a format that continues to spark engaging exchanges, and based on the feedback we’ve received, it’s resonating well with listeners.
In this month’s episode Sabine first explored the possibility that huge terrestrial accessible reservoirs of hydrogen may exist that could provide the basis for a viable hydrogen fuel economy. Then we turned to the results from the wonderful new Vera C. Rubin Telescope in Chile, and what that telescope could do for our evolving picture of the cosmos. After that Sabine introduced a discussion of a scientific paper I wrote with colleagues on implications of mathematical incompleteness theorems for the possible existence of a physical Theory of Everything. Then on to the newly released results from a muon g-2 experiment at Fermilab, which after almost 2 decades of efforts, seems to have demonstrated that predictions from the the Standard Model of Particle Physics, alas, continue to agree with experiments, showing no signs of new physics. After that, we explored a new claim by DeepMind about the abilities of AI systems to design and test new coding algorithms, which might be used to train future systems. Besides the science-fiction sounding nature of this, it could also help reduce the amount of energy needed to build and train LLMs. Finally, returning to my own interest in new results related to the cosmic origin of life, we discussed anew result showing why polycyclic hydrocarbons, which one might expect would be destroyed by radiation in space, seem to survive. This could be important for understanding how organic seeds for life managed to survive long enough to arrive on the early Earth.
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Transcript
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| 0:00.0 | Okay, here we are in the Origins Podcast for one of my favorite times every month |
| 0:13.2 | when I get to speak to one of my favorite people, Sabina Hassenfelder, and I get to hear her unique take on science. And we have a discussion of science |
| 0:23.4 | topics in the news. What's new in science? And it's something I've come to really enjoy. And I'm |
| 0:29.3 | really happy to say, as far as I can tell, other people actually enjoy it too. So Sabina, |
| 0:34.2 | how are you doing there in Europe? Is it hot? Today's fine. It's actually raining outside. So, yeah. Good to see you and good to see you in a studio this time. |
| 0:46.3 | Yeah, that's right. I try. Well, I try, you know, following you, I try and up the game a little bit because you're always so professional. So it's nice to be in a studio. Thank you. Well, we're going to talk about a whole bunch of |
| 0:59.7 | interesting cosmic and terrestrial topics today. And speaking of terrestrial, you're going to talk about |
| 1:06.9 | a topic that's supposedly going to change the future of the world. So why don't you |
| 1:11.3 | talk about that? Yeah, I want to talk about hydrogen. So this is a topic I've followed for a long |
| 1:19.6 | time because I have a personal grudge with the German government that's invested a lot into |
| 1:26.5 | the so-called hydrogen economy that isn't |
| 1:28.8 | going anywhere. |
| 1:29.8 | So I have a lot of misgoing about this stuff because I've always said, like, it doesn't |
| 1:34.5 | make any sense. |
| 1:35.5 | Like to begin with, you know, the idea that we would produce hydrogen from renewable energy |
| 1:43.3 | and then use that to, you know, create electricity. |
| 1:48.5 | It's just, it's terribly energy inefficient, so it doesn't really make any sense. |
| 1:53.1 | Yeah. |
| 1:54.1 | And so in practical terms, what actually happened is that we're paying taxes for what's been called the hydrogen-ready power plants. |
| 2:05.1 | Well, what are they? |
| 2:07.2 | They're actually just gas power plants because once you have something that can deal with methane that has a lot of ages in it, |
| 2:17.1 | it's not that difficult to switch it to burning hydrogen. |
... |
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