Z-Index is PolyDashboard's internal reference for comparing the current BTC Up/Down round with similar historical moments. It is designed to make the round easier to discuss and review. It is not a trading signal, guarantee, or instruction.
The score can consider the current round context, recent BTC movement, price gap behavior, and round progress. The useful question is not "what should I do?" but "does this live setup resemble past setups, and what else should I verify before trusting the read?"
Z-Up and Z-Down can be independent reference values. They do not need to add to 100 percent. Treat them as separate comparison scores rather than a single probability split.
Start with the chart, timer, and market quote. Then read Z-Index as supporting context. If the chart and the score disagree, the disagreement is the point to investigate. The dashboard is more useful when it slows down a decision instead of turning a score into a command.