It is unclear exactly how the market will react to the already obviously formed bubbles, but it is obvious that some altcoins will disappear, if not physically, then morally-for its users and financial investors. And what will be the percentage of extinct altcoins, it is impossible to say for sure. Investing in a particular asset, it is worth paying attention to such factors as the technology that formed the basis of the new cryptocurrency, the community's reaction to it, volatility (if there is already data about it), and how long it has been present in the market.