Bitcoin definitely did it post mtgox (1200 to 300), but the only other securities I can think of dumped linearly (sears)
A true pump and dump exhibits both behaviors, but Sears and most other stocks don't dump as quickly because stocks operate on slower reporting cycles I guess
I believe in Bitcoin and blockchain, overall I think last years run was good for mainstream understanding, but adoption and technology didnt keep up the pace of all price speculation. We correct, we cry, we slowly recover. Not this year, and not next year.
If what you say was true, the price would be rising. Which it's not.
Like any commodity/currency/anything of value, at this point the massess have plenty of/the majority of BTC. Once this changes and hedge funds, banks, et al, will hold the majority of any/all ctyprocurrencies, then 'suddenly' the prices will rise, cryptocurrencies will be mainstream and accepted in your local grocery store, and they will bloom. Only then and not a day before. 'We' can't have the people running their own money. Once their money becomes 'our' money, then we will allow them to play with some of it.
It is called capitalism and holding/controlling the power.
If someone is selling at $4k, it means that someone is buying at 4k. Tomorrow someone will continue buying at 3.5k. I don't think big banks are stupid. They can and will speculate, wait for it around the corner, and when you see it next time hittint $10k, remember that someone who bought it TODAY for 4k is selling it for 10k, making 60% sweat-free profit.
It is a long game.
> then crashes to roughly 2x where it started,
I consider it to have started in the beginning of 2017, around $1k.
Can you point me to a chart and time frame during which the behavior described was occurring? It looked like it did something sort of like that (but not at the magnitudes described) a couple of times in the runup to $19k in late 2017, and I see a big spike in late 2013, but I don't see any sort of real pattern of any type, other than the fairly consistent small price spike after a big drop that comes from people buying at bargain prices.
https://99bitcoins.com/price-chart-history/
And click on 'all' and select 'logarithmic scale' (beneath the chart), you can see it fairly clearly.
https://www.reddit.com/r/CryptoCurrency/comments/9zvoe2/the_...