[_benedict]

> Maybe in some sense this is in the same spirit of Calvin's serializing WAL first and executing it later

Yes, it is very similar in effect, with the absence of a global log conferring some important differences with pluses and minuses. I expect to offer interactive transactions eventually, for instance, which may or may not be difficult for Calvin, and faults on a “log shard” are isolated with Accord, but have global impact with Calvin. But snapshot queries are much easier with Calvin.