CRYPTOCAP:BTC.D   Market Cap BTC Dominance, %
There seems to be strong resistance at the 70-75 range on the BTC.D chart.
Similarly, there appears to be a long-term trendline acting as support, starting at the ETH+Alt peak in January 2018, which would meet the resistance line in late 2021.

Colored trend lines running through 2021 are potential support zones.

Strategy here is to sell BTC for alts when the BTC.D hits the resistance line, then convert back to BTC at the support zones.

Convergence of the two macro trend lines also corresponds with the hypothetical BTC top derived from the S2F model.
In theory, BTC will touch the macro resistance line for the last time at its peak then fall, breaking the support line and ending this cycle's bull run.

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