Some dubious speculation at a bottom here based on Bitcoin hitting its 1.618 golden ratio fibonacci extension. As you can see above, Bitcoin has hit this point in both other "cycles", be them 4 year or otherwise and bounced from there. Not to say we must do that this time, all models will eventually be wrong given enough time. But for right this moment, it is still proving to be an effective support zone in bull cycles. Let's see if it breaks, or holds for yet another cycle.