Ethereum price going up and down is just because of the market that is going down and down everyday and same is applied to 95% of all other coins too, it is not ethereum alone that has its price going up and down; bitcoin price has been going up and down too. So ethereum is not officially dead, its price going down is just because of the market dip state. When the market survives and comes out dip, ethereum price will increase higher again and it will be stable in its yielding price.