Science, as the Islamic mathematician and empiricist al-Haytham (965 to 1040 A.D.) is not done by mere head count:
“The seeker after truth does not put his faith in any consensus, however venerable or widespread. Instead he questions what he has learned of it, applying to it his hard-won scientific knowledge, and he inspects and inquires and investigates and checks and checks and checks again. The road to the truth is long and hard, but that is the road we must follow.”
Ed McQuarrie talks the REAL History of Stocks and Bond performance.
https://www.morningstar.com/portfolios/how-use-commodities-your-portfolio?utm_source=eloqua&utm_medium=email&utm_campaign=FundSpy&utm_content=None_61962&utm_id=32070
How Commodities funds can help diversification with Stocks and Bonds and usually not correlated to either
https://www.morningstar.com/funds/most-stunning-fact-about-vanguards-etf-flows-2
This article shows people are pulling money out of mutual funds and putting it into index funds an example is VOO. Also Vanguard Primecap and Core fund opened the fund due to them both because of money being pulled out. INDEX ETF's way to go tax efficient and low expenses