Long-term systems are rarely built around a single prediction. They are built around repeatable decisions: how much risk to accept, when to rebalance, and when to do nothing.
Compounding rewards consistency, but consistency is not the same as passivity. A disciplined system still needs explicit rules for position sizing, diversification, and drawdown control.
The Northstar approach uses slow-moving signals as context rather than commands. Trend, breadth, and valuation can help frame risk, but none of them eliminates uncertainty.
The useful question is not “What will the market do next?” It is “Does my process still match the horizon and risk I committed to?”