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Crisis BFT consensus protocol — Go PoC, Python recorder, and CrisisViz: a native macOS scrubbable curriculum visualizer (10 chapters, ~18 minutes at 1×, signed-speed slider with reverse playback).
saymrwulf
b33a2cf4a5
Ch03 walks through the five messages from Ch01/Ch02 and shows how
round numbers are derived — not declared — from accumulated PoW
weight. A horizontal thermometer at the top of the canvas fills
green as each highlighted vertex contributes its weight; a yellow
dashed line marks the round-closing threshold. When δ pushes the
total over the threshold, a yellow ring + "is_last" label appears
on δ on every cast member's lane simultaneously. Round 0 closes;
round 1 opens with ε at weight 1.
The chapter's pedagogical punch: nobody voted, nobody declared the
boundary. Every honest player who has the same five messages
computes the same total weight, sees δ push the same threshold, and
flags δ identically. The thermometer is a calculator, not a
ballot box.
Closing beats:
- "Each player keeps their own DAG. Full stop." overlay
- "Re-gossip is harmless" demonstrated: a duplicate α envelope
flies to Ben, arrives, gets a "✗ DUPLICATE — DROPPED" label,
and dissolves. No tower update, no thermometer change.
- "Weight is arithmetic. Arithmetic doesn't depend on who you ask."
`Ch03Timeline.swift` (new) — 17 beats over ~72s. New beat kinds
this chapter introduces: `introduceWeights` / `highlightVertex` /
`markIsLast` / `openNewRound` / `bookkeepingNote` /
`reGossipDuplicate`.
`Ch04_Rounds.swift` rewritten end-to-end (91 → 460 lines) to
render from Ch03Timeline. Lanes carry the carry-forward five
messages with weight + round labels; thermometer at top; bookkeeping
note overlay below; perception towers at the bottom (now also
showing round numbers per block).
`SceneEngine` and `ImmersiveView` extended for chapter 3.
Bundled, harness 55/55 invariants, 0 audit errors, 281 PNGs,
36/36 MP4 written.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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| CrisisViz | ||
| src/crisis | ||
| tests | ||
| .gitignore | ||
| Crisis.mirco-richter-2019.pdf | ||
| crisis_data.json | ||
| pyproject.toml | ||