Layer 2s are now so deeply embedded in the EVM landscape that it’s hard to recall a time when they weren’t a cornerstone of daily life for millions of users. But not so long ago, Layer 2 existed as little more than an idea than a working reality. Over the last three years, however, dozens of Layer 2 networks have sprung up to take the strain off Layer 1 chains such as Ethereum – and now the same transformation is taking place on Bitcoin.
Why We L2
A layer 2 is essentially a blockchain network that draws its security model from the main chain, or parent chain, it’s connected to. Transactions are routed to a secondary network that is cheaper and faster to use, with this activity routinely verified on the main chain by transmitting a proof that attests to the validity of the L2 activity that has recently taken place. In this way, the L2 can benefit from the scalability that its purpose-built architecture supports without significantly weakening its security and decentralization ve

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