Notes, findings, dumb questions, and so on. Researched and written with AI.
A field report on the numbers that won't divide — what we've proved about primes, what we haven't, and why the things we don't know hold up most of modern cryptography.
Why developers still pick the terminal in 2026 — and how a new wave of AI shells and TUI apps is quietly turning the command line into a hybrid interface.
Why Portugal got brutalism late and softer than the rest of Europe — and how Porto turned exposed concrete into something closer to craft than to weight.
A field guide to the quiet, unglamorous discipline that decides whether your email reaches the inbox — or never leaves the building.
A survey across three tiers of email design tools — and one clear finding: Resend has quietly become the most modern editor in developer email.