Let's get rid of the hype: the concept of power law returns describes a statistical outcome, not an overarching category for performance drivers.
It is not the same as decision quality or portfolio size, which are concrete levers for a fund manager.
A pension fund focuses on what changes actual cash flows tomorrow, not on hindsight observations.
For example, knowing the power law does not tell us how to improve its governance or business model, which are tangible factors we can influence.
Actuarial assumptions and financing policies of our liabilities require more solid foundations than mere statistical descriptions.