Past Is Prologue
The Psychology of Finding What You’re Looking For
When blue becomes rare, purple becomes blue
By many measures, the world of today is a lot better than it was a hundred years ago. Literacy, life expectancy, and the number of people above the poverty line have all increased dramatically. That’s not to say there aren’t many more problems to solve, and that we don’t have further to climb uphill in already improving areas.
Yet plenty of people bicker and argue as though the world will end tomorrow. We don’t seem happy in this land of relative abundance. Perhaps global warming is stressing us out, or the impending rise of a robot workforce is putting us on edge — things change so quickly we just don’t feel like we have a grip on what’s around the bend. Maybe it’s all the fault of social media.
A group of researchers might have one piece of the puzzle, and they call it “prevalence-induced concept change.”
“When instances of a concept become less prevalent, the concept may expand to include instances that it previously excluded, thereby masking the magnitude of its own decline.”
When we’re on the lookout for something, bad behavior, for example, and the instances of this bad behavior lessen, we expand our concept to include what…
