Altcoins prices push the price of bitcoin up and down !!
if Altcoin is a simulation of bitcoin's path, so why not just bitcoin enough ??
Any altcoin owns its name, project and ideas, so why that altcoins are related in the pricing with bitcoin ??
who told you that price of altcoins pushes the price of bitcoins?cant you see the trend?bitcoin dictates what the price of altcoins will be.if the value of the Great coins grows,all the alternative coins will grow,but if bitcoin losses price then same as the other coins..so youre wrong in saying such word..about your question why altcoin exists,its because the great coin needs companions to offer other services and to make their own path here in crypto