The basis for this indicator is the HODL Wave (> 1 Year) developed by Unchained Capital. This represents the percentage of coins that have not been moved for at least a year.
The Hull MA perfectly tracks the HODL Wave and provides an easy bull/bear trend in the mid-term.
The long-term and more macro bull/bear trend is decided by if the Hull MA is above or below the base MA.
I have purposefully chosen the 365 day length for the Hull MA and the 730 day for the base MA on the daily timeframe since they represent 1 year and 2 years respectively.