Yes, Investing in cryptocurrencies carries a higher level of risk than traditional investments and other cryptocurrencies, is subject to market fluctuations and subject to significant price drops. While it is true that some altcoins may experience a significant drop in value during a market cycle as you mentioned “Your favorite altcoin may lose 75% of its value in the next market cycle”, that does not mean that they are “dead”. Altcoins can have use cases and propositions. their own unique value, and some may still be able to provide a good return on investment in the long term.