Charted notes on survivorship bias in trading automation: mechanics, waypoints, and the wrecks recorded in production.
Mechanics
survivorship bias works as a staged transformation — ingest, measure, decide, route. Each stage carries its own failure surface.
Waypoints (Configuration)
Parameter choices in survivorship bias steer both signal character and operational load. Log every change and the reason behind it.
Wreck Record (Failure Modes)
Recorded failures for survivorship bias include regime changes, missed heartbeats, and positions that could not be exited cleanly.
Navigation Checks (Evaluation)
An honest assessment of survivorship bias weighs quantitative metrics beside code quality and the attention it demands in production.
Configuration Reference
# Survivorship Bias tested configuration mode: production timeframe: auto risk_limits: max_drawdown: 15 percent max_position: 3 percent monitoring: alert_threshold: 0.5 report_interval: hourly
Parameter Impact
| Parameter | Effect | Trade-off |
|---|---|---|
| timeframe | Signal frequency | Higher means fewer but more reliable signals |
| risk_limit | Maximum exposure | Lower means safer but slower returns |
| lookback | Indicator sensitivity | Longer means smoother but lagging |