Cardano is the first layer (L1) and as a blockchain network does not currently scale well. On the other hand, Hydra is the second layer (L2) that scales very well. But it’s not that black and white. Although L2s solve the problem of low scalability of blockchains, they bring many questions to which we do not know the answers. Should we focus our efforts on better blockchain scalability or rather on L2 development?
Read the article: https://cexplorer.io/article/what-problems-do-the-second-layers-bring