Up to now, ethereum still does not show any value for long-term investment, almost value only knows to turn and go down, even when the market shows signs of recovery, ethereum still once again breaks those signals and goes down, it is not the hottest investment, other altcoins are similar. 2019 is probably a time for bitcoin to prove its sustainability over time, it is the hottest coin, the value has not dropped and still has growth, does not allow altcoins to have a chance to show off, the stage in 2019 is probably just a solo show of bitcoin.