# Experiment 009 — Catalyst Ascent

Build one emitter through a ten-field ascent. The first seven fields each end with an exact catalyst choice; the complete build remains active for the last three. Later populations acquire capabilities that change what sustained fire alone can accomplish.

Run from the repository root:

```bash
./experiments/009_catalyst_ascent/run.sh
```

Then open <http://127.0.0.1:8000/experiments/009_catalyst_ascent/prototype/>.

Controls:

- Move with `WASD` or the arrow keys.
- Aim with the mouse.
- Hold the left mouse button to fire.
- Choose one catalyst after each of the first seven fields.

A failed field restores with the current build. Play until you feel ready to stop, then click **Save JSONL**. Replaying with another build is optional.

Please play before reading [`hypothesis.md`](hypothesis.md).