The two instances displayed are trends reversed into a which have striking similarities. One which could be that the dump(s) and following pump(s) seem to have potential be a factor of two of the previous dump.
The other two vertical golden lines have to reversals.
We are currently sitting on a golden fib which I expect BTC to dump from.
Hopefully this is displayed easy enough to to be interpreted and understood, I appreciate all positive or negative feedback.
I could be completely wrong but this is my analysis.
I wish good trade fortune and profits to all!