# C1543 — Derive the shared lifespan split

## Question

What change does separating the original1550 into600 and950 cause under one reversal?

## Sources

```json
[]
```

## Opened utc

2026-09-29T02:37:40.563178+00:00

## Results

```json
{
  "original_combined": 1550,
  "original_separate": [
    600,
    950
  ],
  "inverse_combined": 5510,
  "inverse_separate": [
    600,
    590
  ],
  "loss": 4320
}
```

## Finding

The combined inverse is5510; the separate lives give600+590=1190. Restoring the Shem division therefore lowers the transformed total by4320.

## Reassessment

Test the predicted4320 against every manuscript, including the completed contexts.

## Checks

```json
{}
```

## Closed utc

2026-09-29T02:37:40.563930+00:00

## Record provenance

Exact record hash: `b0a05e00199f1bc9f0740762b4ad4c653b8928bbeb2309aa41a909eec284fff2`

Source journal: `Research_Cycles/C1483_C1582/c1483_c1582/journal.json`