adamneilson
"Given a value of the database, one can obtain another value of the database as-of, or since, a point in time in the past, or both (creating a windowed view of activity). These database values can be queried ordinarily, without having to make special queries parameterized by time." http://www.datomic.com/rationale.html
So in other words you get to see exactly how the whole database looked at any given moment through history (certain parallels with the blockchain I suppose).
Now if there was any way you guys could start offering your Marketplace platform outside the US (UK specifically) I'll be all over that like a cheap suit! ;-)
I salute you!
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