Every human and their dog becomes an expert on the internet’s critical building blocks when a major outage hits, as it did with devastating effect on Facebook’s properties earlier this week. Normally, these types of outages are blamed on content delivery networks, when we wait for the likes of Akamai, Cloudflare, and Fastly to put their hands up and apologize unreservedly for a technical fault that momentarily caused websites to go offline, ordinarily lasting just minutes. This time, it didn’t last minutes, but hours – a whole six of them. More to the point, CDNs weren’t to blame, either. Without getting too deep into the technicalities of Facebook’s sever infrastructure and its tens of thousands of miles of fiber-optic cables,…