with purple trend line, we could see, even hidden bullish divergence could created HUGE pips bullish impulse movement (from bottom channel to top channel again)
salvanost
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IMO this chart created because in bigger picture
the hidden bullish divergence outside the price channel (purple line) could play role into smaller movement inside the channel too
so my previous ideas about hidden bullish = weak bull signal = start of bearish trend could be invalid with those purple trend line