The market's overwhelming 99.1% implied probability for "No" stems from the entrenched scientific consensus, backed by centuries of astronomical observations, satellite data, and space exploration that confirm Earth's spherical shape. This reality faces no credible challenge in mainstream discourse, even as flat-Earth ideas linger as niche online memes and conspiracy content within certain digital subcultures. Traders recognize the absence of any genuine cultural or evidentiary shift that could alter the outcome. Realistic upset scenarios remain remote, limited to an unprecedented global revelation that contradicts all established physics and visual records, an event with no supporting indicators on the horizon.