https://jamesm.blog/theories/ Recent content in Theories on jamesm.blog https://jamesm.blog/papermod-cover.png https://jamesm.blog/papermod-cover.png Hugo en Wed, 15 Jul 2026 09:00:00 +0100 https://jamesm.blog/theories/unbaffled-jim-al-khalili/ Wed, 15 Jul 2026 09:00:00 +0100 https://jamesm.blog/theories/unbaffled-jim-al-khalili/ Jim Al-Khalili's new YouTube channel Unbaffled launched in June 2026 with a simple pitch - make the ideas that baffle people, from many-worlds to why your brain has two hemispheres, feel intuitive rather than impossible. A first look at the channel, three of its early videos, and where I land on the many-worlds one. https://jamesm.blog/theories/sean-carroll/ Thu, 02 Jul 2026 23:00:00 +0100 https://jamesm.blog/theories/sean-carroll/ Two recent New Scientist videos sent me back to Sean Carroll, the physicist who first talked me into taking the many-worlds interpretation seriously. A profile of the man and his argument - why he thinks quantum mechanics already implies a multiverse, how that differs from the cosmological one, and where I land as a hobbyist who wants it all to be true. https://jamesm.blog/theories/max-tegmark/ Mon, 01 Jun 2026 11:00:00 +0100 https://jamesm.blog/theories/max-tegmark/ Max Tegmark sits at the top of my favourite physicists list, and not by accident. A profile of the man and the through-line in his work - from precision cosmology to the four-level multiverse, the Mathematical Universe Hypothesis, consciousness as a state of matter, and his late turn to AI safety - and why his theories keep landing so close to what I already believe. https://jamesm.blog/theories/is-reality-made-of-mathematics/ Sun, 31 May 2026 08:30:00 +0100 https://jamesm.blog/theories/is-reality-made-of-mathematics/ Max Tegmark's Mathematical Universe Hypothesis says reality is not merely described by mathematics - it is a mathematical structure, and nothing else. A walk through the claim, the Level IV multiverse, the strongest objections, and why the idea sits so close to something I already lean toward. https://jamesm.blog/theories/how-likely-are-we-living-in-a-simulation/ Thu, 21 May 2026 20:32:00 +0100 https://jamesm.blog/theories/how-likely-are-we-living-in-a-simulation/ A careful look at the simulation argument: what it actually claims, why putting a number on it is so hard, and how likely it really is that our reality is computed. https://jamesm.blog/theories/a-new-universe-all-throughout-the-day/ Thu, 16 Apr 2026 07:24:00 +0100 https://jamesm.blog/theories/a-new-universe-all-throughout-the-day/ A short reflection on the strange feeling that reality is constantly becoming new, and how that connects to the many-worlds interpretation of quantum mechanics. https://jamesm.blog/theories/why-is-there-something-rather-than-nothing/ Wed, 15 Apr 2026 23:41:00 +0100 https://jamesm.blog/theories/why-is-there-something-rather-than-nothing/ A physics-minded reflection on one of the deepest questions there is: why anything exists at all instead of nothing. https://jamesm.blog/theories/huge-numbers/ Sun, 21 Apr 2024 22:07:01 +0100 https://jamesm.blog/theories/huge-numbers/ Collection of fascinating YouTube videos exploring extraordinarily large numbers, infinity, and mathematical concepts. https://jamesm.blog/theories/favourite-physicists/ Thu, 11 May 2023 21:06:35 +0100 https://jamesm.blog/theories/favourite-physicists/ A collection of influential physicists who have shaped our understanding of the universe, with notable talks and contributions.