What happened (the claim about core and satellite portfolios)

An opinion column discusses a portfolio structure for major life goals that separates funds into “core” portfolios and “satellite” portfolios. The core portfolio is meant to support planned outcomes for important goals, while the satellite portfolio is meant to seek additional return beyond the core plan.

The opinion column argues for one reallocation direction as a risk-management rule: using satellite gains to strengthen core can be safer, while moving money from core into satellite is usually riskier.

Background and earlier guidance (what was commonly suggested)

Earlier guidance linked with the core–satellite framework suggested using gains from satellite investments to cover shortfalls in the overall goal plan. In simple terms, satellite gains could be used when the core portion underperforms against the planned requirement.

What changed now (the risk logic used by the opinion column)