Magnetic Monopoles & Magmatter - The Strongest Material That Might Exist
Science & Futurism with Isaac Arthur
Isaac Arthur
4.9 • 781 Ratings
🗓️ 23 April 2026
⏱️ 26 minutes
🧾️ Download transcript
Summary
Magnetic monopoles are hypothetical particles with a single magnetic charge — north without south. Predicted by grand unified theories, they may be incredibly massive and could bind together into “magmatter,” an ultra-dense material stronger than anything known in nature.
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Credits:
Magnetic Monopoles & Magmatter - The Strongest Material That Might Exist
Written, Produced & Narrated by: Isaac Arthur
Select imagery/video supplied by Getty Images
Chapters
0:00 Intro
4:52 What Magnetic Monopoles Would Do
10:30 Magmatter: Matter Without Atoms
18:48 Nokia 3310
19:55 What You Could Build — and What It Would Cost
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Transcript
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| 0:00.0 | Magnetic Monopause, the particle that should exist. |
| 0:05.0 | If you had to bet on one particle that should exist but stubbornly effused to show itself, |
| 0:10.0 | magnetic monopause would be near the top of the list. |
| 0:13.0 | They are simple, elegant, and solve real problems in physics, and yet despite decades of searching, |
| 0:19.0 | no one has ever caught one. |
| 0:21.4 | Which is precisely why physicists keep looking. |
| 0:24.1 | In everyday life, magnetism always comes in pairs, cut a magnet in half and you don't get |
| 0:28.7 | a north pole and a south pole, you get two smaller magnets, each of its own north and south |
| 0:33.7 | poles. |
| 0:34.6 | No matter how you finally divided, magnetic pores refuse to separate. That symmetry |
| 0:39.4 | feels natural because we are used to it, but from a physics standpoint, it's oddly lopsided. |
| 0:44.1 | Electric charges come singly. You can't have a positive charge without a negative one nearby |
| 0:49.0 | and vice versa. Magnetic charges apparently cannot. At a day asymmetry has bothered physicists for over a century. |
| 0:56.0 | In fact, if magnetic monopoles did exist, particles with just a north pole or just a south pole, |
| 1:01.0 | meaning the equations described the electromagneticism would become simpler and more symmetric. |
| 1:05.0 | The universe would look more mathematically tidy. |
| 1:08.0 | That alone doesn't make monopoles real, but it does make their absence feel |
| 1:11.2 | conspicuous. The idea of magnetic monopoles dates back at least to the early 20th century. |
| 1:16.6 | It was Paul Dirac who gave them their first serious footing. |
| 1:19.6 | Dirac showed that even a single magnetic monopole anywhere in the universe would explain why electric |
| 1:24.0 | charges quantized, while all charges come in neat multiples of fundamental |
| 1:28.3 | units instead of arbitrary values. |
... |
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