Despacito YouTube viewsChina high-speed rail total km
As China has built more kilometers of high-speed rail, Despacito has accumulated more YouTube views, a correlation of 0.984 that connects the world's most ambitious infrastructure project to the world's most-watched music video with the rhythmic confidence of a bullet train arriving at a platform while Luis Fonsi plays over the speakers. The track extends, the views accumulate, and both numbers climb with the exponential confidence of things that have discovered scale and refuse to stop.
China's high-speed rail network grew from about 25,000 km to over 42,000 km between 2017 and 2023. Despacito accumulated from about 3 billion to over 8 billion YouTube views during the same period. Both are monotonic growth curves: rail because China's infrastructure investment continued at pace, views because the video is algorithmically promoted and culturally embedded. Seven data points of two exponential curves produce a high correlation. The train and the song share nothing except a decade of relentless accumulation.
Seven years of Chinese rail and Despacito views is a correlation between two forms of unstoppable momentum: one built in steel and concrete, the other in pixels and playlists. The train arrives, the song plays, and both are products of systems optimized for growth. Des-pa-ci-to. Or, in this case, very quickly.
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Want to learn more about why correlations like “Despacito YouTube views” vs “China high-speed rail total km” don't prove causation? Read our guide to statistical thinking.