Trader consensus on Polymarket prices a 77.5% implied probability on "No" for any MrBeast YouTube video hitting 50 million views in its first 24 hours by April 30, driven by recent softening in opening-day metrics amid a "falling off" narrative. His mid-March release, "Trapped On An Island Until I Build A Boat," garnered just 36 million first-day views despite high production values and 473 million lifetime tallies so far, underperforming prior benchmarks like 70+ million peaks. While MrBeast hyped an upcoming "50 streamers compete for $1,000,000" challenge—potentially dropping April 4—as his best ever, tapping streamer fanbases for cross-promotion, traders remain skeptical given irregular upload cadence and YouTube algorithm volatility. First-week projections hover at 80-110 million total, but day-one surges face stiff barriers without unprecedented viral momentum.