But, where are the buyers? At 6000$ the volume was ridiculously low, no one was buying, so it crashed.
not really!
actually volume has been pretty high at $6k range considering price was stable and day trading was impossible. you shouldn't really compare volume during a stable price time with volume of a highly volatile time like when price was rising 100% in one month! obviously when price is rising or falling fast and big, there will be a huge volume compared to when it is moving less than 5% in a day!
besides price doesn't crash because nobody is buying. price crashes when a large amount suddenly is sold on the market.
Now we have much better trade volumes at 4000$,
actually if you compare the current volume (that price is nearly as stable as $6k+) you can see volume is less than that time. and i suppose it is because of that uncertainty that was created because of the dump.
none of this changes the fact that we are still in a big reverse bubble though.