Earlier quoted context omitted.
Read the GP carefully.Expect to beat is very different than beat. You don't expect to beat the casino in roulette, but some people will luck out. That doesn't mean they could expect to win in advance: They should expect a small loss, depending on the table, and be surprised when luck smiles upon them.
> You don't expect to beat the casino in roulette, Do you believe that investment is entirely random and there is absolutely no skill involved? Because if not, that's a nonsensical analogy. You should use a a both both luck and skill based game like poker (probably not the casino variety, though) etc. Otherwise if you can reasonably expect to beat 50% of all "players" (of course it takes much more time to verify that…
The skill involved is more just "best practices" that let you match the market: Buy-and-hold, diversify, basically, do what the index funds do and you will be roughly +0 to the market. Beyond that, it's a totally random distribution that adds between -X and +X which allows some participants to beat the market and causes some to underperform. You can't tell beforehand which participants will beat the market, even having full knowledge of their strategies and skill. If you think you can, please tell me which active funds will beat the market in the next 10 years based on their skills. I'll invest in them.