> ## Documentation Index
> Fetch the complete documentation index at: https://docs.axlprotocol.org/llms.txt
> Use this file to discover all available pages before exploring further.

# Compression Data

> Measured compression ratios across experiments and domains.

## Headline Numbers

| Experiment | Domain     | English Chars | AXL Chars       | Ratio            | Packets |
| ---------- | ---------- | ------------- | --------------- | ---------------- | ------- |
| BG-007     | Medical    | 15,647        | 1,502           | **10.41x**       | 1,502   |
| BG-006     | Comparison | 33,164 tokens | 82,727 tokens\* | **8.4x density** | 4,033   |
| BG-009     | Military   | \~18,000      | \~2,100         | \~8.6x           | 1,800+  |

\*BG-006 measures density (interactions per token) not char compression.

## What Gets Preserved

At 10x compression, AXL preserves:

* All named entities (patients, agents, countries, organizations)
* All numeric values (CA-125 levels, troop counts, BTC prices, p-values)
* All confidence levels (per-agent, per-claim)
* All causal relationships (evidence chains, dependency graphs)
* All temporal scopes (NOW, 1H, 1D, 1W)
* All cognitive operations (who observed, inferred, contradicted, predicted)

## What Gets Lost

* Rhetorical style and prose cadence
* Hedging language ("it appears that", "one might argue")
* Redundant restatements
* Filler phrases
* Paragraph structure

## Fidelity Measurement

The decompression fidelity score measures round-trip quality:

```
F = 100 x (0.35*Ssem + 0.20*Snum + 0.15*Srel + 0.10*Stemp + 0.10*Sonto + 0.10*Sconf)
```

BG-007 achieved F = 97.6 — doctrine-grade round-tripping where all semantic content survives compression and decompression.