The Alts have made tremendous gains vs Fiat. When BTC / Fiat is at its peak, don't the Alt / Fiat have to collapse? People will be selling Alts to buy BTC. Right?
BTC/fiat is still far away from it`s peak and there`s no connection between btc/fiat and alt/fiat.
This year,most of the altcoins are following the bitcoin bullish trend and get pumped.If bitcoin collapses,most of the altcoins will crash as well(but not all of them).If the people were selling alts and buying btc,the altcoins prices should decrease.I don`t think that the crypto traders will risk their portfolios only to bet everything on btc.