The anti-correlation between bonds and equities hasn’t been a thing for decades. That is advice that passed its sell-by date a while ago. The modern version is

The anti-correlation between bonds and equities hasn’t been a thing for decades. That is advice that passed its sell-by date a while ago. The modern version is to go hard into equities and out-grow the drawdown risks. You still want a couple years of burn in treasuries but that is strictly a buffer against adverse returns. By the time you retire, the treasury fraction is a tiny fraction of the total by virtue of the equity growth rate.