In my opinion, $13K is quite possible this week for Bitcoin. But whales are confuse for dumping more because they know Bitcoin has more value and it is undervalue around $13k. So more dumping means draining their bags so quickly. People are really hungry for Bitcoin in new inflationary era.
If BTC hit 13k then it will be a flash crash. Most people won't be able to buy BTC at the low because the market will quickly recover too. I also think 13k is possible but do not think this will be that quick. I am expecting this to be happening at the end of this year. We could see a sideways moving at the 20k level which is a major physiological support level.