Mediumhigh level designdistributed systemsnetworkingCDNs: Move the Bytes to the User, Not the User to the BytesA user in Sydney pays ~200ms to reach a Virginia origin before any work happens — physics you can't code around. This is how CDNs cheat the speed of light with edge PoPs, anycast routing, and HTTP caching.Asked at Cloudflare, Akamai, Fastly +3Aug 8, 2026·16 min read