Tracked orbital debris objectsAlibaba Singles Day sales
There is something deeply Earthling about the fact that as we launch more satellites and create more space junk, Chinese consumers simultaneously decide to buy more things on a single day in November. One would expect these phenomena to exist in entirely separate universes, yet here they are, moving together like dance partners who have never met but somehow know all the steps. Perhaps the universe is simply reminding us that chaos and consumption are not opposites but distant relatives at the same family dinner.
The culprit is almost certainly the exponential growth in global economic activity and internet connectivity between 2009 and 2021. As developing nations industrialised and more people came online, two things happened simultaneously: space agencies and private companies launched vastly more satellites for communications and earth observation (debris objects grew from roughly 13,000 tracked pieces to over 34,000), while Alibaba's Singles Day shopping festival expanded from a domestic novelty into a global event generating sales in the hundreds of billions. It is rather like watching the number of cars on a motorway increase in perfect sync with the number of traffic cones—both are symptoms of the same underlying expansion, not evidence of a causal relationship. Add in the fact that both datasets span exactly the period when emerging market consumer spending and space industrialisation hit their growth curves simultaneously, and you have a correlation that feels miraculous but is really just two teenagers growing at the same age.
We are creatures who notice when two unrelated things move together and immediately suspect cosmic significance, when in fact they are usually just both responding to the same invisible conductor: economic growth, technological adoption, or simple temporal coincidence. This correlation tells us almost nothing about space debris or shopping habits, but rather a great deal about how eagerly our brains reach for patterns. The universe does not care what we buy on November 11th.
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Want to learn more about why correlations like “Tracked orbital debris objects” vs “Alibaba Singles Day sales” don't prove causation? Read our guide to statistical thinking.