The founder of Cardano, is Charles Hoskinson - he was one of the founders of Ether. This means that behind this project are people who have an impeccable reputation, and have already managed to commit a blockchain revolution by creating the Ethereum platform. According to official sources, work on the development of the Cardano project began in far 2015, and by the end of 2019, all the ideas will be realized. The Cardano protocol provides an opportunity for compatibility and collaboration of such platforms as Ethereum, Bitcoin and even the Swift financial translation system. On this basis, answer yourself to the question whether it makes sense to keep it.