Last time $BTC reached ATH during 2017/18 bubble on Dec 17th, 2017 and then made a lower high on Jan 07th, 2018. In the meantime, the "sold money" is used to pump $ETH and $ETH reached ATH a little after Jan 7th, 2018. Likewise, $BTC reached ATH in this cycle in Apr 14th, 2021 and lower high on May 11th, 2021. In the very same time, $ETH is pumped to ATH. My inference is that once $BTC makes lower high after ATH (and in the meantime $ETH making ATH) implies that crypto bull run season is over. I will change my hypothesis if $BTC crosses 42k (200 daily MA) else bearishness holds.