Bitcoin is on fire sale on the ten year old rainbow chart, a measure that tries to ascertain whether bitcoin’s price is overvalued or undervalued based on halvings.
It last reached this level only two years ago, very briefly in March 2020, and before that in 2015, with this being one of the few charts that has held over many years.
Source: https://www.trustnodes.com/2022/09/19/bitcoin-hits-fire-sale-as-crypto-merges-with-macro