I am always surprised to see it go down! What happens when a scant 21 million people want to hodl an average of 1 measly bitcoin each???
Always surprised?

How about when 10,000 own most of them, top 100 a huge chunk of that, and one owns 1m+? Joe retail public has to eat all their diversifications, plus a portion of 3600 mined coins per day. Impossible to say where bottom is, but in theory it should seek/lead mining cost +/- speculative sentiment.
Speculative bulls are probably pulled back and waiting on GBTC trading to try some kind of buying push. 2 weeks. Not averse to sitting there for cheaper coins in the interim. Not that the pink sheet volume will really mean much for the market, but as a catalyst to stop-hunt/bounce.