This market tracks Elon Musk's tweet output during a three-day window from April 18 through April 20, 2026, a period capturing his typical high-frequency posting behavior on the X platform. The market resolves YES if Musk posts between 65 and 89 tweets (inclusive) during these dates, and NO if his total falls outside this range. Tweet counts are objectively verifiable through X's public API or archived data, making resolution deterministic and unambiguous. At current YES odds of 41%, traders are pricing in roughly a 40% probability that Musk maintains moderately elevated posting activity throughout this three-day window. His daily tweet frequency varies significantly based on external factors like market volatility, product developments, engagement cycles, and his real-time responses to news events. The 65-89 range represents high activity relative to many accounts, though moderate for Musk's historical standards—above his typical baseline but below his peak during major controversies or announcements. This market closes at midnight UTC on April 20, 2026, offering a short resolution window. These real-time social media activity markets reflect trader interest in quantifying influencer behavior and platform dynamics as prediction markets expand beyond traditional events.