Index

Writing

Essays, notes, spines, and readings — on measurement, meaning, and human oversight of AI systems.

Everything here is organised by research thread and by format. Formats are not decoration: they set expectations about length and finish, so a short note can be published without pretending to be a full argument.

ESSAY
A developed argument. Long enough to earn its conclusion, and written to be read start to finish.
NOTE
A single point, stated once. Short by design — a distinction worth having, not a full treatment.
SPINE
A historical arc of a field, maintained over time. Reference material rather than a linear read.
REVIEW
A reading of someone else’s work — a paper, a framework, a regulation — and what it changes.

All writing

  • Security Is a Big World
    Two frontier labs gated their strongest cyber capabilities two days apart. But discovery was never the bottleneck. Defensive advantage lives in the harness.
  • The Transcript Is Deleted. What It Taught the System Is Not.
    OpenAI announced yesterday that it deletes your data and tracks patterns across your interactions, in the same post, and both are true at once.   The bundle is Zero Data Retention (ZDR),…
  • A Router Is a Default Waiting to Happen
    Open-weight models are about 25% of AT&T’s AI usage today. Its chief data and AI officer told the Wall Street Journal he expects 70 to 80%, and AT&T already runs a smart…
  • Claude’s Watermark Is Not Encryption
    Anthropic announced on August 11 that Claude models launched from August 2, 2026 onward will embed an invisible watermark in generated text, worldwide, as part of implementing its EU AI Act Article…

Spines

Spines are maintained separately because they are reference documents rather than dated posts — they get revised as a field moves. They are indexed at Spines.