Blockchain has come a long way since its inception, and the technology is evolving at an unprecedented rate. Blockchain is now being widely embraced by businesses, governments, and individuals. However, there is still a significant challenge that blockchain must face, and that is interoperability. With so many different blockchain networks available, interoperability has become a major challenge. It’s clear that addressing interoperability challenges will be one of the most significant concerns for the blockchain industry. One solution to this problem is layer 2 scaling.

What is Layer 2 Scaling?

Layer 2 scaling enables blockchain networks to scale without having to increase their block sizes. This is accomplished by moving transactions off-chain and onto a separate layer. This layer communicates with the main chain, which ensures that the network’s security is maintained while still being able to carry out high volumes of transactions.

This approach can significantly improve the performance of blockchain networks, enabling them to execute more transactions, faster and more efficiently. However, layer 2 scaling also provides a solution to the interoperability challenge, allowing different blockchain networks to communicate more effectively with each other.

Layer 2 Solutions that are Tackling Interoperability Challenges

There are several layer 2 solutions that are helping to address blockchain’s interoperability challenge. Here are a few examples:

1. Plasma: Plasma is a scaling solution that allows for the creation of a network of sidechains that can interact with each other. Plasma enables sidechains to be executed as independent blockchain networks, while still interacting with the main network. Plasma has been used by blockchain projects such as OmiseGO to enable interoperability between blockchain networks.

2. Lightning Network: Lightning Network is a layer 2 solution that aims to enable faster and cheaper micropayments on the Bitcoin network. The Lightning Network operates as a second layer on top of the Bitcoin blockchain, enabling users to transact with each other instantly and cheaply.

3. Polkadot: Polkadot is a next-generation blockchain network that aims to enable interoperability between different blockchain networks. Polkadot provides a scalable, heterogeneous multi-chain that allows different chains to communicate with each other. The network is designed to enable secure cross-chain communication, providing an effective solution to the interoperability challenge.


Blockchain’s interoperability challenge is not going away anytime soon, and it is essential that the industry keeps up with the challenge. Layer 2 scaling solutions present a promising solution to this problem, enabling blockchain networks to communicate more effectively with each other. Layer 2 solutions such as Plasma, Lightning Network, and Polkadot are just the beginning of what lies ahead for blockchain interoperability. The future of blockchain is bright, and we can expect to see more exciting developments in the years to come.