Buffett’s bet: The finale | Vanguard Blog

"In 2007, Buffett wagered that no investment professional could pick a portfolio of at least 5 hedge funds that would outperform a low-fee S&P 500 index fund over the subsequent decade.

Protégé Partners accepted the challenge. At stake was a donation to a charity of the winner's choice. By the end of 2016, Buffett's lead had become so sizable that he declared victory.* Protégé Partners conceded. Now it's official."

https://vanguardblog.com/2018/01/25/buffetts-bet-the-finale/?EXCMPGN=EM:RIG:ED:eITV:Email:Link2:020118:101:INV

This illustrates nicely the beneficial effects of very small expense ratios.