> “Datomic added to DynamoDB was the only option that didn’t force us to sacrifice features or add the expense of developer time. Without it, we would have had to push back a lot more, as the features would have been too difficult.”

(https://www.datomic.com/the-brigades-story.html)

like, what? effectively useless information.

some of the other testimonials mention keeping revision history, which is neat, but why Datomic vs. others? it's pretty easy to keep revision history with other databases too.