Decoded Intelligence Signal
Lookahead Bias
advanced
strategy
Verified: May 27, 2026Lexicon Core Definition
A critical error in model development where features or labels incorporate information from the prediction period or future periods, producing unrealistically strong backtest results that cannot be replicated in live trading.
Analysis Breakdown
A critical error in model development where features or labels incorporate information from the prediction period or future periods, producing unrealistically strong backtest results that cannot be replicated in live trading. Full explanation coming soon when Journey 23 content is ingested.