“Try to relax” is a paradox with a precise psychological mechanism. So is the traversable wormhole: the geometry you need to cross spacetime closes the moment you try to use it. The grandfather paradox, Wegner’s ironic monitoring process, and Rick Sanchez’s nihilism problem all share the same deep structure — and understanding that structure is more interesting than any of the individual cases.

A browser-based simulator for exoplanet transit photometry, binary eclipses, and exomoon scenarios — built with Kepler integrators, limb darkening, and N-body dynamics. I spent Christmas on this. You’re welcome, science.

Bruner’s enactive stage and Montessori’s materials both understand that abstract concepts must be grounded in physical experience before symbols can carry weight. The touchscreen skips that stage entirely — and the learning data are beginning to show it.

In late 2025, agentic coding tools went from impressive demos to daily infrastructure. The problem nobody talked about enough: when an LLM agent has write access to a codebase and no formal constraints, reproducibility breaks down. The Ralph Loop is a deterministic, story-driven execution framework that addresses this — one tool call per story, scoped writes, atomic state. A design rationale with a formal sketch of why the constraints matter.

Iannis Xenakis applied the Maxwell-Boltzmann velocity distribution, Markov chains, and game theory to orchestral composition. In Pithoprakta (1955–56), 46 string parts are molecules of a gas, each following the kinetic theory distribution. In Duel and Stratégie (1959–62), two conductors play a zero-sum game with payoff matrices on stage. This post works through the physics and mathematics, and asks what it means when a composer treats an orchestra as a thermodynamic system.

‘Analogue warmth’ and ‘digital coldness’ are not aesthetic preferences — they are different physics. Ferromagnetic hysteresis generates even harmonics. Delta-sigma modulators push quantisation noise to ultrasonic frequencies. Both effects are calculable.

AI companions promise to address the loneliness epidemic. Daniel Wegner’s ironic process theory predicts they will fail under exactly the conditions where people need them most — and recent data from MIT and OpenAI suggest the prediction is correct.

The {7/2} heptagram is not only a symbol. It is a traversal algorithm over seven beat positions. Because 7 is prime, that traversal never gets trapped in a sub-orbit.

A cat’s eye contains two distinct optical technologies that human engineers have copied — one consciously, one not. The slit pupil achieves a dynamic range of 135:1 in light transmission, nearly ten times that of the human circular pupil. The tapetum lucidum is a multilayer thin-film reflector of crystalline rodlets, producing constructive interference at the peak of scotopic sensitivity and sending light through the retina twice. Banks et al. (Science Advances, 2015) showed why the slit geometry specifically evolved in ambush predators; Percy Shaw’s 1934 Catseye road reflector borrowed the principle directly.

aTrain and noScribe are local, GDPR-compliant, Whisper-based transcription tools that can genuinely save hours of work in qualitative interview research. They also make methodological decisions on your behalf without telling you. If you do grounded theory, you need to know which decisions those are.