I think I said this in another comment, but I'm not shitting on Spanner or DDB's right to exist here. Obviously, there are _some_ problems for which a globally distributed ACID compliant SQL-compatible database are useful. However, those problems are few and far between, and many/most of them exist at companies like Google. The fact is your average small to medium size enterprise doesn't need and doesn't benefit from DDB/Spanner, but "enterprise architects" love to push them for some ungodly reason.