Now that we know what layer 1 is, let's look at some examples. There's a huge variety of layer-1 blockchains, and many support unique use cases. It's not all Bitcoin and Ethereum, and each network has different solutions to the blockchain technology trilemma of decentralization, security, and scalability.ElrondElrond is a layer-1 network founded in 2018 that uses sharding to improve its performance and scalability. The Elrond blockchain can process over 100,000 transactions per...