Last year ethereum also experienced a decline as it is now, but to my knowledge does the price not fall as badly as this? how could this happen? what is behind it?
I guess it is not just the Ethereum that falls in the 2018 period. The market is all down and we cannot really say what affects it in a major way but I think it is because of the worthless coins in the market and it all needs to be kicked out in order for the market to stabilize.