Current diameter of the Internet?

What is the current estimated diameter of the Internet? Maximum (worst-case) RTT edge-to-edge? Most public latency data is now edge-to-cloud, not edge-to-edge. Cloud engineers have done a great job, and edge-to-cloud less than 1-sec RTT. Where have the long-slow pipes gone? https://www.cloudping.co/grid https://learn.microsoft.com/en-us/azure/networking/azure-network-latency?tab... https://www.verizon.com/business/terms/latency/