The best part is that investing in the indices would actually benefit from the ape mindset of buy and refuse to sell/hold forever and average down if it dumps.
In this market if you're boasting about averaging down you're doing it wrong. Everything is at/near 52 week highs. Outside of Realty Income (down $7/share) i'm averaging up in everything i'm buying. That includes VFIAX at $510 when my DAC is $100 lower.