Earlier quoted context omitted.
I don't think it's employees as such — even Apple does not have THAT many machine learning people, and they wouldn't download models daily. Maybe a server farm, where each instance downloads a model when spinning up?
In the last days of my time spent in the XML salt mines, I got in on a conversation with the web masters at w3.org. You would not believe how many people and how many libraries pull from primary sources directly instead of using local copies of common resources. I found this conversation because I'd just finished fixing that in our code and taking about 5 minutes off the build process. Let me restate that: We were sp…
It's not an issue I really see, but it seems to me that CI infrastructure (Travis, ...) really should have caching proxies in place.