I don't think that's true. Route53 has been using Anycast since its inception [0].
The Twitter thread you linked simply points out that fault isolation is tricky with Anycast, and so I am not sure how you arrived at the conclusion that you did.
Got it, thanks. Are there research papers or blog posts by Google that reveal how they resume transport layer connections when network layer routing changes underneath it (a problem inherent to Anycast)?
I don't think that's true. Route53 has been using Anycast since its inception [0].
The Twitter thread you linked simply points out that fault isolation is tricky with Anycast, and so I am not sure how you arrived at the conclusion that you did.
[0] https://aws.amazon.com/blogs/architecture/a-case-study-in-gl...