"block store must treat every operation with identical care" Yes, and because of that it's easier to do a block storage, than a filesystem. But sure, filesyste

"block store must treat every operation with identical care" Yes, and because of that it's easier to do a block storage, than a filesystem. But sure, filesystems have enough semantics to potentially scale across multiple data centers and probably be performant enough for many apps to tolerate those latencies. However, the level of complexity would be similar to that of Google's Spanner.