A newsletter that combines a linear algebra series called The Grammar of Reality with reflective essays on the foundations of physics. Readers get slow, intuition-first explanations of operators, generators and projections, plus essays on what relativity and quantum mechanics imply about physical definiteness.
Website: https://www.ivethium.com/
Long-form essays on history and astronomy, pairing archival detective work with clear explanation of scientific and historical puzzles, such as a disputed 1680 star observation and solar neutrino experiments. Readers get careful, well-sourced narratives that show how evidence is weighed and where uncertainty remains.
Logicae is a Korean-language newsletter that explains mathematics, science and technology in long, structured series. Its current series walks through quantum chemistry step by step, covering atomic structure, the Bohr model, the variational method and perturbation theory.
A weekly-style space and physics newsletter that explains big science projects and ideas, such as the Thirty Meter Telescope's siting troubles, the IceCube neutrino observatory, and debates over Euclid's historical existence. Readers get accessible, narrative explanations of telescopes, particle physics and the history of science.
Future Insider is a Substack newsletter examining the economics and science of AI and emerging technology, including AI infrastructure investing, IPO risk, and AI in drug trials. Readers get analytical essays on which AI-driven businesses and tools may succeed and what the market is pricing in.
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