Task 192: EP04 Counterfactual IF Analyses

Status: DONE

Goal

Add counterfactual IF analyses to EP04 (Titania to Earth departure, plasmoid encounter).

EP04 IF Scenarios

1. What if the engine was used to evade the plasmoid?

- Costs 1 ignition from the 3-4 budget

- Saves 480 mSv radiation exposure

- But cascading effect: extra thermal cycle damages nozzle

- EP05's 26-minute nozzle margin would disappear → mission failure

1. What if きりたん had stayed at Titania?

- Physically safe but captured by security fleet (33h)

- Narrative choice: freedom vs survival