Seems very suspicious to me.
https://www.stopp.org/article.php?id=15283
https://en.wikipedia.org/wiki/Leana_Wen
Ed McQuarrie talks the REAL History of Stocks and Bond performance.
https://www.morningstar.com/funds/what-doubters-get-wrong-about-6040-portfolio
What the 60 percent stock portfolio and the 40 percent bond portfolio helps your portfolio