The overwhelming scientific consensus, backed by centuries of empirical data from navigation, astronomy, and space exploration, drives the market's near-certain rejection of a flat Earth. Traders see no credible cultural or media momentum for flat Earth theories, which remain fringe compared to the dominant spherical model reinforced in education, documentaries, and public discourse. Recent missions and science outreach have only strengthened this narrative without meaningful shifts. An upset would require an unprecedented discovery upending established physics and global observations, a scenario viewed as extraordinarily improbable given the consistent evidence across disciplines.