I believe it's not a problem for an individual. Getting market returns is fine for a normal high worth individual (even if some of them won't accept that and de

I believe it's not a problem for an individual. Getting market returns is fine for a normal high worth individual (even if some of them won't accept that and demand ways to beat the market). It's a problem for people in the financial sector whose income/wealth stems from convincing people that you can beat the market (convincing is really the key, but it's way easier to convince people of it if you've already had success--even if that was luck). If you have a few million dollars to invest, you can beat the market by just finding a few arbitrage opportunities. But if you have $100 billion to invest, you need a lot of ideas--figuring out that a $1 billion company is incorrectly priced only lets you get returns from a fraction of the money you manage. Note: I'm an outsider..maybe someone in finance could give a better description.