Before we start:Whether you’re an expert on blockchain technology or not, if you’ve been around Crypto long enough. You must have heard Ethereum Scaling, layer2, rollup multiple times in different situations. Many people are familiar with one or more of these concepts, but what exactly is the relationship between them? Why do we need these technologies? What kind of problems are they trying to solve? If you want answers to all of these questions, hopefully, this article can help you: Everythi...