Sad but true. When the price is down, few people are interested in buying bitcoins. But in a hype and with high prices, people suddenly become interested in bitcoin and buy him dearly.

I've experienced this again and again in the last few years in my circle of acquaintances and it hasn't changed to this day. I wonder when will people finally learn it?

They will never learned from it even if they encounter a lot of losses. For as long as the greed is there, they will always be blinded with the high prices and tempted to buy again and again when the market is on top. When they have no funds at all left to buy, maybe thats the time they will realize that their strategy is not working , the reason why they keep on losing.