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What a CASHLESS society REALLY means
(links.hackliberty.org)
Privacy is the ability for an individual or group to seclude themselves or information about themselves, and thereby express themselves selectively.
If our societies would be perfect (now and any time in the future), we would not need this discussion, maybe not even privacy at all. Though a lot of things are very good in our societies, I guess we will not live to see them becoming perfect, so I rather retain some caution, and privacy.