I've built three CDNs in my career, one at the Tbps scale. Latency only has two factors in throughput: time to scale window size, and retransmits. Modern TCP stacks handle the prior just fine, and the latter is only an issue with packet loss. You can also turn on HTTP/3 and remove your reliance on TCP entirely.
> I don't understand why you continue to ignore the fact that this for running a high-traffic, global, dynamic website, not just a static file server.
Because I actually looked at the site and read the article. The vast majority of the site is large static files. The frontend is a static JavaScript app that calls an API server. That API server is running on a $5/mo VM.
My offer still stands if you'd like a tour of a datacenter and see the sausage being made at scale. I'll throw in lunch and answer all your scalability questions if you like. But this thread is growing quite long and veering off topic.