Interoperability is the ability of different blockchains to communicate and exchange information with each other.

For example, it would be beneficial if Bitcoin and Ethereum were interoperable, so that users could easily transfer assets between the two networks.

Currently, most blockchain networks are not interoperable, which limits their potential uses. However, there is ongoing research and development to create interoperable blockchain networks.

One example is the Cosmos Network, which is designed to connect different blockchains and allow them to exchange information and assets. Other projects, such as Polkadot and Cardano, are also working on interoperability solutions.