Earlier quoted context omitted.
I’m not asking why, because anyone can find instances of mania in history such as this. Beanie babies. Tulips. The law of large numbers, in this case—the speculative experiment of seeking returns from assets that do not produce value, will iron this out. History does not repeat, but it rhymes often enough for those who know the tune to sing along.
The tulip derivative bubble lasted for a few months; beanie babies were a year or two at most. Bitcoin is over ten years old. Do you have any examples of a bubble which - lasted more than 5 years - recovered from previous drops in value of more than 50 %? What kind of evidence would convince you that bitcoin were different from these past bubbles?
Plus the Lindy effect. If it's lasted 10 yrs, it's likely to last another 10.