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Re:Datomic Pro Starter Edition by danneu on Saturday November 09, 2013 @01:27AM (#6700884)
Excision removes the data.

In other words, you can remember that you forgot, but you can't remember what you forgot.

http://blog.datomic.com/2013/05/excision.html

What you're describing is plain ol retraction. If you retract your credit card number, then someone can just surf back in time to grab it. That's why you'd excise it.

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