Absolutely. It's a huge undertaking which is why I think it's going to take a lot of crowdfunders to get one out the door. It's not clear just how much of a de

Absolutely. It's a huge undertaking which is why I think it's going to take a lot of crowdfunders to get one out the door. It's not clear just how much of a demand there is for an open source alternative to Datomic which I'm trying to measure with the sign up landing page. PostgreSQL solution might work if there was a way to guarantee immutable audit trail. This is really why Datomic favored in financial industries as it gives a high level of confidence that the audit trail can't be manipulated (even if you delete a record, that action will show up in the audit trail). I do agree that it's rather surprising that we still don't have something like Datomic on github with a liberal licensing like MIT or BSD. It could be due to demand or high cost barrier associated with emulating something like Datomic. And this is what I hope crowdfunding will change the game. Pay people to work on their pet project full time by crowdfunding it.