The explanation to "so why is it still going up?": (from reddit)
"For the time being it seems to follow the trend of overpriced real estate, overpriced stocks in general and really hyped ones like TSLA. Since nobody knows where to put their money, everything is bought. In an era where a significant amount of people would believe in QAnon, that Corona is a fake and that Trump didn't lose the election (the "post-truth era") it seems to be possible to declare an item X to be valuable, and millions are going to believe it. The experiment shows that there's no longer a fundamental difference between shares and buttcoins, only a gradual one. Buttcoin's price is to 100% percent driven by hopes and beliefs, whereas TSLA's price is to 60% driven by it. So especially for Buttcoin which can't produce anything, it will be interesting to see how long they can keep it up. If they manage to always build a higher floor after each big pump and dump cycle caused by the halvings, it's a nice social experiment creeping into a new form of reality. Still there is money missing in the whole cycle because it's a negative sum game nevertheless, this keeps my interest in the whole story alive: how long can it go? Madoff could do it for decades and wouldn't even have failed then without the banking crisis."