there was a period in the rise of the Internet in the 1990s where companies and universities would conduct private deployments of local networks using TCP/IP (called “intranets”), even after many transitioned from IPX/SPX these LANs were often air-gapped from the public Internet for security and control reasons eventually, almost all of these connected to the public Internet and achieved instant interoperability due to their use of TCP/IP (the default communication stack on the Internet) because the value of doing so became too great to ignore we’re going to see the exact same thing happen with EVM L1s (stands for “Ethereum Virtual Machine”) which eventually connect to Ethereum via L2s and other mechanisms as i’ve said many times, you need to study the history of the early Internet if you want to have a chance at understanding Ethereum