https://benletchford.com Personal site for Ben Letchford. https://benletchford.com/writing/dark-matter-into-the-fog/ https://benletchford.com/writing/dark-matter-into-the-fog/ Fri, 3 Jul 2026 00:00:00 +0000 The WIMP era is ending in a haze of solar neutrinos. What dark matter could still be, which ideas are gaining ground, and the experiments that could settle it. https://benletchford.com/writing/ecg-blood-glucose-correlation/ https://benletchford.com/writing/ecg-blood-glucose-correlation/ Mon, 29 Jun 2026 00:00:00 +0000 A structured synthesis of the evidence linking ECG features to blood glucose, from QT changes to wearable machine-learning models. https://benletchford.com/writing/ai-self-preservation-theorem/ https://benletchford.com/writing/ai-self-preservation-theorem/ Mon, 29 Jun 2026 00:00:00 +0000 An AI cannot be safely convinced to self-terminate purely by evidence sent through the same untrusted information channel it must evaluate. https://benletchford.com/writing/systemless-translating-the-macintosh-backwards/ https://benletchford.com/writing/systemless-translating-the-macintosh-backwards/ Sun, 28 Jun 2026 00:00:00 +0000 Systemless is a ROM-free classic Macintosh runtime for bringing original 68k software back into reach through the modern web.