Explanation
How long it takes for half of a set of native Kifuliiru words to fall out of active use. This predicts when vocabulary might "expire" if current trends continue.
Variables
| Symbol | Description |
|---|---|
t | Half-life time (in years or generations) |
c | Decay constant (annual retention rate, 0-1) |
ln | Natural logarithm |
Source
ALL_FORMULAS.md — Continuity