How did altcoins peak in 2018?

BNC:BLX   BraveNewCoin Liquid Index for Bitcoin
I plot XRP, Feather, DASH at the 2018 top with BTC to demonstrate this. They were well known back then.
Will history repeat? No idea.

In 2018 BTC peaked, and some alts peaked at same time as BTC like DASH.
But other alts, like XRP and Feather kept shooting up. BTC went down, then retraced back up to 0.707 for the last hurrah. And many alts peaked at that 0.707 retrace.

I'm willing to bet, that XRP will be a late bloomer again.
Comment: SQRT(50) = 0.707 by the way