science
Hosted by Mark Jeffery · science · EN · 87 episodes
The Last Theory is an easy-to-follow exploration of what might be the last theory of physics. In 2020, Stephen Wolfram launched the Wolfram Physics Project to find the elusive fundamental theory that explains everything. On The Last Theory podcast, I investigate the implications of Wolfram's ideas and dig into the details of how his universe works. Join me for fresh insights into Wolfram Physics every other week.
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Contact path
Public web form
Booking probability
32%
Guest openness
Selective
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Signup to Generate a PitchThe Last Theory is an easy-to-follow exploration of what might be the last theory of physics. In 2020, Stephen Wolfram launched the Wolfram Physics Project to find the elusive fundamental theory that explains everything. On The Last Theory podcast, I investigate the implications of Wolfram's ideas and dig into the details of how his universe works.
The Last Theory is hosted by Mark Jeffery. The show has published 87 episodes to date.
Recent episodes include "The search for solid ground with Stephen Wolfram" (9 October 2026, 9 minutes), "Stop using quantum mechanics to science-wash your delusions" (3 October 2026, 9 minutes), and "There are no rules in science" (21 August 2026, 20 minutes).
The Last Theory publishes roughly monthly, with episodes averaging 14 minutes across 87 episodes.
Booking probability for The Last Theory is 32%, and the host is rated Selective on guests. The Last Theory requires a Pod Score of 80 or higher. The Last Theory's contact route on record: public web form.
The strongest fits for The Last Theory are Scientific Research & Development. The Last Theory has a science audience.
Mark Jeffery hosts The Last Theory, a science show with 87 episodes published.
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Episode #86
Stephen Wolfram talks about how he knows what he knows, the interplay between theory and experiment, and the importance of building towers of knowledge on solid ground. — Stephen Wolfram Stephen Wolfram The Wolfram...
Episode #85
I am tired of hearing quantum mechanics invoked in support of nonsense . You know the kind of thing. Quantum mechanics therefore crystal healing. Quantum mechanics therefore psychic powers. Quantum mechanics therefore...
Episode #84
I’m forever hearing that there are rules in science. If a theory breaks the rules, I’m told, it must be rejected . Trouble is, if, in the past, we’d rejected any theory that breaks the rules , we’d have rejected...
Episode #83
<p>Stephen Wolfram is an extraordinary thinker.</p><p>He doesn’t seem to think like other scientists. He doesn’t seem to think like other technologists. And he certainly doesn’t think like an academic.</p><p>So I asked...
Episode #82
<p>If physics is computational, then what gets computed when?</p><p>This is a surprisingly deep question.</p><p>The seemingly even computation of the universe gives us a clue, not just to the nature of time, but to the...
Episode #81
<p>Stephen Wolfram has many philosophical ideas, but I’ve not heard him talk about pure philosophy.</p><p>When I asked him about the relationship between physics and philosophy, I understood why.</p><p>Stephen revealed...
Episode #80
<p>Do different observers think differently? Or does the principle of computational equivalence mean that all observers think the same way?</p><p>Stephen Wolfram takes this question and runs with it.</p><p>If we had...
Episode #79
<p>Physics, the way we’ve thought about it for the last few hundred years, requires us to make assumptions about time.</p><p>In our old way of thinking, just as we must assume three axes of space – scales along which we...
Episode #78
<p>Different observers, from different regions of the ruliad, experience the universe in different ways.</p><p>To what extent can these different observers communicate their different experiences?</p><p>Can dogs, with...
Episode #77
<p>The ruliad is every possible computation. What could you possibly say about such an enormous, all-encompassing object?</p><p>Well, that’s where we come in.</p><p>Particular observers sample the ruliad in particular...
Episode #76
<p>The hypergraphs generated by Wolfram Physics are complex and chaotic.</p><p>The multiway graphs that trace every possible evolution of these hypergraphs become extremely complex and extremely chaotic after only a few...
Episode #75
<p>It’s been a while since my last episode of The Last Theory or Open Web Mind.</p><p>Where am I?</p><p>It might look like I’m lazing in the sun, but actually I’ve been working hard.</p><p>For The Last Theory, I’ve been...
Episode #74
<p>Electrons may be tiny black holes propagating through the hypergraph.</p><p>After all, electrons and black holes have much in common: they’re carriers of pure motion, they’re all the same – from the outside, at least...
Episode #73
<p>The multiway graph shows every possible evolution of the universe.</p><p>So, if we can compute every possible reality, does that mean that there’s no single objective reality?</p><p>Well, the causal graph, it turns...
Episode #72
<p>In this fascinating exposition, Stephen Wolfram connects two of the most important breakthroughs of our time: AI and the ruliad.</p><p>I ask Stephen how he thinks about knowledge hypergraphs, which I’m exploring at...
Episode #71
<p>Can you hold in your mind two different threads of experience?</p><p>In this five-minute excerpt from my conversation with Stephen Wolfram, he introduces the strange idea of a multiway mind.</p><p>Most of the time...
Episode #70
<p>Fields don’t exist.</p><p>I mean, a field with grass in it, that kind of field does exist.</p><p>But a field in physics?</p><p>A gravitational field? An electric field? A magnetic field? A quantum field?</p><p>No...
Episode #69
<p>In the previous excerpt from my conversation with Stephen Wolfram, I asked him how I can remain a single, coherent, persistent consciousness in a branching universe.</p><p>In this excerpt, we went deeper into this...
Episode #68
<p>When the universe branches, we branch with it.</p><p>Those branches don’t remain forever apart. They come back together.</p><p>So we, as conscious observers, are rescued from splitting into an immense number...
Episode #67
<p>The causal graph is at the core of Wolfram Physics.</p><p>It’s crucial to the derivations of Special Relativity, General Relativity and Quantum Mechanics.</p><p>And if that’s not enough to convince you that you need...
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