Blog

Posts on new AI releases and longer series on how real systems work, explained from the ideas they build on.

Series · 2 of 18 parts published

How US Healthcare Works

The US healthcare system end to end: who pays, who provides, and how a visit turns into a claim and a payment.

  1. The map: members, patients, providers and payers
  2. Public and private coverage: Medicare, Medicaid, employer and marketplace plans

  1. 23 October 20265 min read

    Agent Skills, Explained: What They Are and How They Differ From MCP

    Agent Skills became a vendor-neutral standard on 22 October 2026. Here is what a skill is, how agents load them without filling their context, and where they fit next to MCP.

  2. 23 October 20266 min read

    Do AI Agents Need a Memory System? What Two New Papers Found

    MemoryTax found that a strong model searching its raw history beat memory frameworks, and TurnCost found that an agent's bill grows with its turns, not with the size of tool output.

  3. 23 October 20267 min read

    How US Healthcare Works, Part 1: Members, Patients, Providers and Payers

    Who the players in US healthcare are, how many of each there are, and how money and information move between them when someone sees a doctor.

  4. 23 October 202610 min read

    How US Healthcare Works, Part 2: Public and Private Coverage

    Medicare and its four parts, Medicaid and CHIP, employer plans, the ACA marketplaces and the military and veterans' systems: who each one covers, who pays for it, and how it reaches providers.

  5. 22 October 20268 min read

    From Image Classifiers to H-JEPA: Learning by Predicting What Matters

    How vision models went from needing a label on every image to world models that plan by predicting in their own representation space, and what the new H-JEPA paper adds.