>>Regarding "Don't beat the market", Warren Buffet says "The game is really easy when your opponent decides not to play".

Except Warren Buffet himself is a huge proponent of low-cost index funds, and recommends them for the average person.

You really can't use him as an example because he's at the extreme end of the spectrum: wealthy to the point where managing his wealth is his full-time job. He has decades of experience and the knowledge that brings. So to him, it does look as if no one else is playing the game. That's the real context of his quote.