@bkamphaus: thanks for you explain. One more question: ‘sound’ is the Datomic’s invention OR is a concept of general in programming?

@isaac, it just means "complete, solid or secure", as per https://en.wiktionary.org/wiki/sound (nothing to do with acoustics)

i like this doc: http://docs.datomic.com/capacity.html

trying to get a feel for how far i could get with 2 peers, transactor, and storage (aka datomic starter pro)

i think/hope the license cost and yearly maintenance that follows could be trivial if you scaled to a point of needing pro

you can get pretty far if you're efficient with resources. The only thing you don't have is HA in case 1 transactor fails

@dm3 that makes sense, if HA becomes a concern because real money is at stake, then pulling the trigger on a license would make sense

thnx