It was really fascinating to know about Cardano (ADA). Well, based on what I have read on the article provided by the OP, it was indeed interesting that a certain Altcoin have mixed up the features both Bitcoin and Ethereum do possess. What I can say is that almost all Altcoins can do compete those two well-known and most used cryptocurrencies because every cryptocurrencies have their ow unique potential like Cardano and it was really fascinating how its technology is working with which is really interesting and has a lot more to offer. But despite of that fact being stated about Cardano, it is given that it can compete with both Bitcoin and Ethereum but it does not momentarily mean that is can already surpassed those two. Well, I can see Cardano to really have a great potential because of the specifications its technology possess which is bases from the mixed up features of the two well-known cryptocurrencies of all time. Looking forward to know more about Cardano and see how it will be doing well. It is just great that such project do exist which inhibits how technology, ideas and concepts are being upgraded to produce such fascinating project. Hoping to see more projects like this which is worthy for time and investment.