CRYPTOCAP:BTC.D   Market Cap BTC Dominance, %
This is how I see possible next altcoin season in the wider picture.

So far BTC Dominance trades inside a bearish triangle and printed a good bearish engulfing on the Monthly time frame. Notice that a bullish one was printed at 2018 and worked pretty well.
I Expect some tests on diagonal resistance, even with wicks, before we start raly down. That diagonal resistance needs to be broken, such as 2020 ATL in order for us to see altcoins flying like January and half February.

Lower time frame, 1D is printing a great bearish head & shoulders (www.tradingview.com/x/eqpCpO5I/), but there is still enough room to fill in the right shoulder and BTC isn't giving a break to anyone at the moment.
Trade the dips on altcoins and scalp. Don't overextend.

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