Much like Ethererum, Cardano is future-based. It builds upon limitations of other cryptocurrencies. As Bitcoin struggles to meet the demands of low transaction fees and swift transaction times, coins like Cardano emerge to solve those problems out of the box. Cardano is definitely worthy of a very moderate investment at least. Whether or not this coin will rival Bitcoin (in price, not purpose) is left to be decided. It’s best to keep your ‘digital eggs in many digital baskets’ and diversify your investment. Cardano is most certainly a worthy pick for your portfolio.