BTC.D has just tested the .618 of its December 2020 long term high, December 2020 marked the beginning of the 2021 alt season. Its December 2020 long term high is the .618 from December 2016, December 2016 marked the beginning of the 2017 alt season.
BTC.D's weekly RSI has entered overbought levels while forming bearish divergence similarly to the December 2020 long term high.