Now is not the time to buy Bitcoin. Although it looks cheap, Bitcoin is very dangerous now. Anything is possible. Perhaps the cryptocurrency market is about to disappear, but investors are still numb.
Yes, anything is possible, but the probability of an event differs from that of the other event. Regarding the disappearance of all cryptocurrencies, the probability of this event is close to zero, because crypto is not something future world can live without. It is more likely that television, for example, will disappear completely in the next 20 years than that will happen to cryptocurrencies.