Now the prices of all cryptocurrencies strongly depend on the price of Bitcoin, this is probably due to the fact that all exchanges have trading pairs with Bitcoin and when its price falls in dollars, this is reflected in other cryptocurrencies. Bitcoin is the first coin and many new coins have been created on its basis, but I think its importance and necessity for the cryptocurrency world is greatly overestimated. There are coins that may well take the place of Bitcoin and this will not affect the cryptocurrency market in any way.