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Re:Horizon 1.0: a realtime, open-source JavaScript back end ... by amelius on Tuesday May 17, 2016 @03:56PM (#11716823)
Okay I can wait :)

But without optimistic transactions, what sets Horizon apart from just running the transaction-code on the server? If I understand it correctly, the latency will be the same in both cases, i.e., one network round-trip.

Re:Horizon 1.0: a realtime, open-source JavaScript back end ... by coffeemug on Tuesday May 17, 2016 @04:16PM (#11717022)
Ease of use.

Lack of optimistic updates is a temporary state, though. The vision for Horizon definitely includes this functionality, and we'll make sure it lands ASAP.