100% stocks maximize long-term wealth, while a 60/40 stock-bond mix reduces volatility but greatly limits returns ($33,033 vs. $4,200).

From Adam Khoo post 
https://www.facebook.com/share/p/1ZiixkqAo2/ 

100% invested in Equity (stocks) will maximise your returns/wealth accumulation over the long run. A mix of stocks and bonds (60%/40%) will lower volatility during recessions but you sacrifice a large part of your potential gains. $4,200 versus $33,033. There is no right or wrong way to invest. Would you rather get lower returns with lower volatility or higher returns with higher volatility?