You simply cannot argue that caching doesn't work if the data is different for everyone. I understand that. It's aggregation. But the metadata lives within a

You simply cannot argue that caching doesn't work if the data is different for everyone. I understand that. It's aggregation. But the metadata lives within a database and it is imperative for that to be glossed over with a RAM based cache. I really hope my initial post wasn't interpreted the way it was to validate that response. I don't take back anything I said--and I'm sure it's not what I want to hear. Architectures scale, not languages... Twitter simply cannot be distributed... it's not news, I've written about it earlier.