Let's talk about this. Pretty interesting stuff.
https://corporate.vanguard.com/content/corporatesite/us/en/corp/vemo/vemo-return-forecasts.html
Ed McQuarrie talks the REAL History of Stocks and Bond performance.
https://www.morningstar.com/funds/vanguard-wellesley-income-is-top-choice
Could be a great fund to start with starting in retirement and cash. Or use Vanguard Wellington and cash if you want to be more aggresive