"MongoDB, even at the strongest consistency levels, allows reads to see old values of documents or even values that never should have been written."
1. http://docs.mongodb.org/manual/reference/glossary/#term-stri...
Great for sub-linear time algorithms! At that point, all my algorithms ran at less than O(n) on the size of the data I had written in.
From a business perspective, Occasional Consistency is also a very nice property if you are storing audit data for certain types of organizations. It gives complete plausible deniability about rule compliance.
I guess you could also call it Quantum Consistency.
I can't even google this term without it auto correcting to Eventually Consistency.
The wiki article, https://en.wikipedia.org/wiki/Consistency_model, doesn't even have such a term.
Doing a hard search term on google reveals nothing.