~snip~
Only for people who do not know about bitcoin, even there are many people who know only a little bit about bitcoin could rise from nothing to $20k said it is a manipulative asset or gambling device like Warren Buffet. Depends on their perspective, people could say anything about bitcoin, that's why they have to learn about the fundamental things regarding bitcoin. It is not a safe-haven asset for the short term and we don't know what will happen for the long term, but so far bitcoin doing so good to this point.
I will call that is because lucky. I have a friend who wants to invest in bitcoin in 2017 before bitcoin reaches the ATH. He asks me how I can join in bitcoin. I told him to use some money, let say $10 per week or $30-$50 per month, to buy bitcoin at the current price. I also told him not to panic if he found the price is down instead of buying more bitcoin. He follows my advice, and he did that for almost a year. Suddenly, when the bitcoin price increased and reached ATH, I told him to send all of his bitcoin in his wallet to the exchange, and yes, he made a lot of money by that time.
That is what he got after he only invests in bitcoin for less than a year, but he was at the right time, the right place, and the timing was very good. So if there are people who still do that from a few years ago, and they still hold their bitcoin and prepare for the next ATH, I am sure that he will make a lot of money because of the high price to us.