Of course there is a "dead" crypto currency. Today, the world has about 16.6 million bitcoins. For the whole time of the existence of the crypto currency, about 3 million bitcoins have been lost, as many previously lost Bitcoin Cash coins, and tokens with a capitalization of less than $ 30 million are generally worthless. It is, first of all, about bitcoins on purses with lost access codes, bitcoin cache on the same purses, which as a result of hardcore have already been born lost, transferred to non-existent wallets coins, as well as a huge number of "bubbles" of illiquid tokens pumped by the owners of the issue by trading robots with each other. But ALL Crypto-currency as such can not die.