Elon Musk has long been known for prolific social media engagement, particularly on X (formerly Twitter), where he regularly shares updates on his companies, personal observations, and commentary on business and global events. This prediction market specifically asks whether he will post between 140 and 159 posts during the seven-day period from April 17 to April 24, 2026. The metric is objective and fully resolvable: post count is publicly verifiable through X's official data and historical post archives. At current odds of 0%, the market reflects trader expectations that Elon will post either significantly more than 159 times or fewer than 140 during this seven-day window. The 140-159 range corresponds to roughly 20-23 posts per day on average, representing a moderately active engagement level typical of his baseline social media presence. Market odds typically shift as the resolution date approaches, driven by Elon's business announcements, Tesla updates, product developments, and broader seasonal patterns in his social media habits. Understanding his historical tweet frequency provides useful context for evaluating the probability of this specific volume outcome. This market exemplifies how prediction platforms can quantify measurable outcomes around the digital behavior and social media activity patterns of high-profile public figures.