Probably the best recovery in the history of Bitcoin.

I guess you've never seen a real Bitcoin shakeout or capitulation.

Check out the Silk Road crash in October 2013, or the January 2015 crash. This is nothing compared to those.
But how did this happen!?
Bears went on a fishing expedition which failed. They dumped into thin books, trying to pressure the market down by making new lows. Buyers snapped price back like a rubber band, driving price right back where it came from. That squeezed the bottom shorters, who are scrambling to close their losing shorts now. This kind of action is called a "short squeeze."