Here is another recent example (Gold) of an expanding leading diagonal. As you may know, this is the BITSTAMP pattern I think is unfolding since 152 mid January. BTC's diagonal is wave (a) of ((5)) which is part of a massive expanding diagonal underway since 2.22 four years ago
and for double kicks, that 'a-b-c' is a '1-2-3-4-5'.
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