Thanks for the thoughtful addition—great point about how serverless and edge architectures are reshaping session strategies. I agree that token-based approaches like JWTs help avoid affinity issues, though they introduce their own tradeoffs. On affinity, I generally find cookie-based more reliable than source IP, especially given NAT and IP churn in real-world traffic. Ultimately, though, moving toward stateless or shared-session designs tends to be the more scalable direction.