Perslis Defense
PERSLIS DEFENSE · HISTORY

How we built the brain, step by step.

It started with a toy that had to think offline. Every step since asked the same question at a larger scale: how do you build a brain you actually own — one you can open, read and fix?

Nine steps

  1. Day 1The brain factoryCan a child's toy have its own small, offline brain?
  2. Feb–Mar 2026TinkyBrainsSmall, specialised brains
  3. Mar–May 2026SML — the smallest language modelTeacher → verifier → student
  4. Mar 2026 →Structured knowledgeKnowledge stops being trapped inside weights
  5. Mar 2026 →Trace — PeelThe system remembers what happened, and why
  6. Sep 2026Fail-FirstFailure becomes the mechanism that changes the brain
  7. Sep 2026Peel — a self-evolving symbolic brainIt changes while it runs, without gradient descent
  8. Sep 2026One brain, many worldsStop building a new brain for every environment
  9. NextThe embodied brainThe world stops being software

The Brain Factory, the whole lineage on one page →