In markets, there is a theory proven historically that movement will RTM or Return To Mean. In five years BTC.D appears to have found somewhat of an equilibrium and is moderating within a more defined range as expected. This is neither good nor bad for BTC, it's good for the crypto space on the whole since it shows maturity in the market and the growing strength of all coins. If there were no Sampson, Goliath would grow bigger than what anything could handle. Altcoins are a moderator and keep BTC growing within bounds which is a healthy thing. Nobody wants to see the market run red again like it did in 2017/2018 at the left of the chart.
Comment:
To clear up any misunderstanding, RTM has been called numerous monikers over the years. Regression Toward the Mean, Regression To the Mean, Reversion To the Mean and Reversion To Mediocrity among others. I erroneously substituted 'Return' when 'Reversion' was intended.