Thanks for reading it through @fathamburger.

A large part of the routing algorithms have come via our sciences team. We have some incredibly smart people who have been at this for a long time. To get a sense as to how they approach things, here are the Google scholar links for Dr. Jason Ernst - our Chief Networking Scientist, and Dr. Zehau (David) Wang, our Applied Research Scientist:

Jason: https://scholar.google.com/citations?user=SbUmSEAAAAAJ

David - https://scholar.google.ca/citations?user=pquTtPYAAAAJ

We have an internal joke in the office that we called "David's Law", whereby every time he did a Git check-in the performance of the network doubled. I don't think that will continue for very long, but we have a lot of ideas for network performance enhancements that will take several years (and many more smart people too).