Scaling solutions refer to methods and technologies that help improve the performance and capacity of systems, particularly in the context of computing and networks. These solutions enable organizations to handle increased workloads without compromising efficiency. Common types of scaling include vertical scaling, which involves adding resources to a single machine, and horizontal scaling, which involves adding more machines to distribute the load. In the realm of blockchain technology, scaling solutions are crucial for enhancing transaction speeds and reducing costs. Examples include Layer 2 solutions like Lightning Network for Bitcoin and Plasma for Ethereum, which operate on top of the main blockchain to alleviate congestion and improve user experience.