Every plan and the baseline are simulated on one shared 520-week (10-year) weekly clock. Running them on the same clock is what lets Keel compare them honestly. Within each week:
- Investments compound and reinvest dividends weekly.
- Debt interest accrues weekly (per-debt APR).
- Debt minimumsfire monthly (and are already netted out of the surplus, so they're never double-counted).
- Contributionsland on your cadence (weekly / bi-weekly / semi-monthly / monthly / annually). Each contribution event deploys that period's surplus per the plan's rule.
The chart on the drill-in is a window onto this precompute — slice it to 1mo / 3mo / 6mo / 1y / 5y / 10y; nothing recomputes, it just re-slices.
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