It is a curious feature of the universe that Americans have apparently decided to purchase confectionery and play a sport involving small plastic balls in perfect synchronisation, as if following some ancient pact nobody can quite remember signing. Between 2014 and 2022, these two entirely unrelated pursuits moved together with a correlation of 0.964, which is to say almost perfectly, which is to say in a way that suggests either profound cosmic conspiracy or the most elaborate coincidence ever to masquerade as data. One might have expected chocolate sales to correlate with, say, winter weather, or pickleball players with, say, literally any other sport. Instead we have this.
The answer, of course, is probably just prosperity wearing different disguises. Both candy consumption and pickleball participation surged during a period of economic recovery and suburban expansion, which is to say Americans got richer and moved to communities with decent court facilities and disposable income for both snacks and new hobbies. Population growth alone explains a great deal—the US gained roughly 25 million people between 2014 and 2022, and these people apparently wanted both Snickers bars and recreational paddle sports with equal enthusiasm. But there's something pleasantly stranger happening beneath this: the rise of pickleball coincided with COVID-era lifestyle shifts and search for affordable outdoor activities, while candy sales spiked during that same period, suggesting that lockdowns and suburban relocation created identical conditions for both purchasing chocolate and taking up increasingly vigorous hobbies to manage the resulting nervous energy.
What we have stumbled upon is not evidence of causation but rather a portrait of American anxious prosperity—the way populations express identical economic and cultural impulses through wholly unrelated consumer choices and leisure activities. The data asks a question it cannot answer: are we watching two separate phenomena move together by chance, or are we watching the same phenomenon wearing two completely different masks. Perhaps that is the real correlation we should be studying.
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Want to learn more about why correlations like “US candy and chocolate sales” vs “US pickleball players” don't prove causation? Read our guide to statistical thinking.