When you say fail, I really don't get what you mean clearly. The price of the entire market was on a bloodbath throughout the year 2018, where almost all investors faced losses. Currently the price of coins in the market has highly bounced back to good prices and aiming for higher as time goes on. ETH is one coin that will not fail/due in the crypto industry. It is a foundation layer for lots of ICO projects, and its well known round the world.