The strong market consensus against a magnitude 10.0 or greater earthquake before 2027 reflects well-established geophysical constraints on maximum rupture length and fault mechanics along Earth's subduction zones. Seismological records show the largest confirmed event reached only 9.5 on the moment magnitude scale in 1960, and peer-reviewed models from agencies like the USGS indicate that a 10.0 event would require fault segments exceeding several thousand kilometers—far beyond any known tectonic boundary. Current global seismic monitoring through mid-2026 reveals no anomalous strain buildup or foreshock patterns capable of producing such an extreme release in the short time remaining. While revised fault-mapping data or an unprecedented multi-segment rupture could theoretically shift outcomes, historical frequency and observational baselines continue to anchor trader expectations firmly in the "no" outcome.