The 7 Habits of Highly Ineffective People
You see, years back the famous psychologist B.F. Skinner discovered that rats would work much harder if the rewards were unpredictable (rather than a treat every 5 times they pressed a bar, one would come after 4, then 13, etc). This is the same as email, most of it is junk, but every so often, it’s fantastic: an email from the woman you’ve been chasing for instance.
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“You are weighed in the balance, and found wanting.”