::
To answer @lakshya25’s question about calculating returns geometrically, the reasoning is, since endowments’ and foundations’ Time Horizon is perpetual in nature, the difference between additive method and geometric method will cause a huge gap down the years.
I know they are not going to exactly earn the same return every year, but lets say they have a “Immunization God” who immunizes their portfolio and provides them with the exact same return every year, the difference in both the methods will matter.