The market-implied odds of 99.4% for "No" on a magnitude 10.0 or larger earthquake before 2027 reflect the established physical limits on seismic energy release. USGS data confirm that earthquake magnitude scales directly with fault rupture length, and no known fault segment is long enough to produce a 10.0 event; the theoretical maximum on Earth falls well below this threshold. The largest instrumentally recorded quake reached only 9.5 in Chile in 1960 along an approximately 1,000-kilometer subduction zone. With roughly four months remaining until 2027, the short timeframe further reduces any already negligible chance of an unprecedented event. While minor measurement revisions or discovery of previously unknown faults could theoretically alter assessments, current monitoring by agencies like the USGS shows no conditions supporting such an outcome.