The sheer trading action was enough to know we were gonna pull back. I literally told the listeners of my show if they bought BTC on the break of 10k I would punch them in the mouth. We buy the pullback not the break.
The parabolic spike over 11k in the matter of an hour or two was akin to the BCH move a couple weeks ago.
My memory could be off but I thought the 20k thing was established quite some time ago. I need to dig through my coinbase emails.
It wasn't made official until late yesterday.