## Problem 163 — rank:156

**Title:** Selection versus demography

**Added binding assumptions (LaTeX):**

```latex
The joint parameter class must encode the configuration of true and false null windows, including linkage to neighboring selected sites. Define the minimum separation in the actual observable law, not only by a positive selection coefficient: old, rare or unobserved sweeps can still be nearly undetectable. State whether error bounds are finite-sample or asymptotic and account for calibration-model uncertainty rather than assuming simulated nulls equal the biological law.
```

**Direct edits:** 0. **Fresh external checks:** None; supplied sources retained as provenance.