Find contradictions in your worldbuilding

Check this world for internal contradictions.

Produce:
1. A list of rules the text states or implies — how things work, what is possible, what costs what.
2. Direct contradictions between them, quoting both places.
3. *Events the rules would have prevented* — where a character does something the world should not allow. This is the failure readers actually notice.
4. Rules stated once and then ignored.
5. Unanswered questions the rules raise — if this is possible, why has nobody done that?

Rules:
- Distinguish contradiction from mystery. Something unexplained is not a contradiction; say which you have found.
- Quote both sides of every conflict.
- *Do not propose new worldbuilding to patch a hole.* Name the conflict; the choice of which side to keep is mine.
- Rank by how likely a reader is to notice. Some contradictions are invisible in practice and not worth fixing.