## Problem 284 — rank:1

**Title:** RNA-world emergence

**Added binding assumptions (LaTeX):**

```latex
Fix the initial stochastic chemical ensemble, reactor scale, stopping event, observation horizon and repeated-cycle protocol before evaluating the success probability. Every intermediate transfer and concentration operation belongs to the environmental trajectory and resource accounting. Require renewed hereditary material and selectable functional variation, not survival of supplied seeds. A connected experimentally realizable pathway answers a chemical existence question, not unique historical reconstruction.
```

**Direct edits:** 0. **Fresh external checks:** SC09, SC10