A quick look at how Bitcoin could drop as low as 25-26k or even 22-23 and remain bullish.
Bitcoin first broke above an inverted HS, which ultimately led to a parallel channel breakout on the weekly chart.
We haven't yet re-tested the top of that channel.
A re-test doesn't always occur, but if it does a re-test at 25-26k is easily still bullish and remains above both pattern breaks.
There's also the possibility of a pullback below the inverted HS that still remains above the channel if a re-test occurs but gets dragged out for weeks. A prolonged re-test could pullback below the inverted HS, yet remain above the parallel channel, going as low as 22-23k or even lower (below 20k) if it is prolonged further.