The strong trader consensus favoring no magnitude 9.0 or greater earthquake before 2027 reflects the extreme rarity of these megathrust events on the moment magnitude scale, which require simultaneous rupture across hundreds of kilometers on major subduction zones. USGS records confirm only five such quakes since 1900, with the most recent in 2011, while global recurrence intervals typically span 20–50 years or longer. Recent 2026 activity has peaked at M7.8, with no foreshock patterns, accelerated strain, or monitoring indicators from agencies like the USGS signaling an imminent full-margin failure. Although clustered great earthquakes have occurred historically, probabilistic hazard models assign very low short-term odds, and the brief remaining window further reduces likelihood. Unexpected model revisions or rapid stress transfer on zones like Cascadia could theoretically alter this, though current data show no such precursors.