Stack Overflow questions per year

From 2015 to 2023, as the cost of a 30-second Super Bowl advertisement rose toward $7 million, the number of Stack Overflow questions declined with a correlation of negative 0.97. The most parsimonious explanation is that as AI tools improved, developers asked fewer questions on forums — but a more entertaining explanation is that the same money flowing into football advertising was somehow, spiritually, leaving the software industry. No economists have endorsed this theory. Several have laughed nervously.

Stack Overflow question volume peaked around 2014-2016 and declined through the early 2020s, partly due to the maturation of the platform's knowledge base (older questions already answered), the rise of AI coding assistants, and changes in how developers search for information. Super Bowl ad costs rose from roughly $4.5 million per 30 seconds in 2015 to $7 million by 2023, driven by the event's status as the last mass simultaneous television audience. Both trends reflect technology maturity curves: Stack Overflow's content ecosystem saturating, and traditional TV advertising concentrating its remaining premium inventory.

Saturation is the quiet engine behind many negative correlations. As one thing fills up, another empties out, and the numbers will imply a relationship that is really just two different markets completing their natural arcs.