John is Professor Emeritus of Philosophy at the University of Western Ontario. You can find his website here: https://publish.uwo.ca/~jbell/

Find Back to the Stone Age on:

• YouTube: https://youtube.com/playlist?list=PLZrhMJ5eusE_ACw6Ec3TqCbvDVZ6HP809&si=WhVnrLLAUuYW-Any
• Spotify: https://open.spotify.com/show/3pT8MUeR8bskcsuu8gmUGK
• Apple Podcast: https://podcasts.apple.com/us/podcast/back-to-the-stone-age/id1741219288

Outline

00:41 - John's introduction

08:35 - Is The Universe Mathematical in Nature?

25:50 - Limitations of Language in Philosophical Enquiries

31:20 - Mathematical Constructivism

41:07 - Implications of Constructivism and Intuitionist Logic

48:54 - Nature of Mathematical Truths

01:05:45 - The Axiom of Choice

01:37:20 - The Nature of The Continuum

01:50:43 - Relationship between Mathematics, Physics, Philosophy

02:03:14 - The Nature of Consciousness

02:23:03 - 1000-years After- Nap Question

02:29:00 - Conclusion

Enjoy Back to the Stone Age!

Thomas is a professor of Physics at KU Leuven (https://shorturl.at/IVa8S).

He's on Twitter: https://x.com/ThomasVanRiet2

Find Back to the Stone Age on:

• YouTube: https://youtube.com/playlist?list=PLZrhMJ5eusE_ACw6Ec3TqCbvDVZ6HP809&si=WhVnrLLAUuYW-Any
• Spotify: https://open.spotify.com/show/3pT8MUeR8bskcsuu8gmUGK
• Apple Podcast: https://podcasts.apple.com/us/podcast/back-to-the-stone-age/id1741219288

Outline

00:24 - General Relativity and Quantum Mechanics

11:50 - String Theory

21:41 - Singularities in String Theory

37:47 - Extra Dimensions in String Theory

48:30 - The Landscape and The Swampland

58:36 - Fine Tuning of the Universe

01:16:20 - The Most Beautiful Concept in Physics

01:20:00 - Final Thoughts and Conclusion

Hope you enjoy it, this is Back to the Stone Age!

Andrea is a theoretical physicist and he works on Dark Matter and Particle Physics.

He was awarded the ERC (European Research Council) Starting Grant.

Andrea on LinkedIn: https://www.linkedin.com/in/andrea-caputo-ph-d-2475999b/?locale=en_US

Seeing my interviews from one year ago is a bit cringe, but I'm working on it 😜 Hope you like it anyway!

Find Back to the Stone Age on:

• YouTube: https://youtube.com/playlist?list=PLZrhMJ5eusE_ACw6Ec3TqCbvDVZ6HP809&si=WhVnrLLAUuYW-Any
• Spotify: https://open.spotify.com/show/3pT8MUeR8bskcsuu8gmUGK
• Apple Podcast: https://podcasts.apple.com/us/podcast/back-to-the-stone-age/id1741219288

Outline

01:10 - The Standard Model

03:09 - Gravity and the Standard Model

06:30 - String theory and accelerators

13:47 - The Hierarchy problem

22:54 - Supersymmetry

26:12 - ΛCDM model and the Standard Model

34:08 - Dark Matter candidates

41:20 - Inflation and the Standard Model

49:00 - Extra dimensions

52:07 - The Baryon Asymmetry problem

57:58 - Neutrinos' mass problem

01:06:13 - The CP problem

01:16:24 - The parameters of the Standard Model

01:20:33 - Is mathematics invented or discovered?

01:23:07 - Final thoughts and conclusion

Enjoy Back to the Stone Age!