I answered those talking points here: https://news.ycombinator.com/item?id=33020993 https://news.ycombinator.com/item?id=33020993 I disagree that stateful bas

I answered those talking points here: https://news.ycombinator.com/item?id=33020993 https://news.ycombinator.com/item?id=33020993 I disagree that stateful based sessions are simpler. I disagree size of cache is a red herring. You don't have to be FB to want to optimize your memory usage. In the end I prefer the more efficient (mostly stateless) solution and it's really easy to implement. But to each their own of course.