What if Uranus had never stayed in the outer Solar System but instead migrated inward and settled into an orbit at 2 AU — right between Mars and Jupiter? At 14.5 times Earth's mass, an ice giant this close would dominate the middle Solar System, shepherding or shattering the asteroid belt and sending chronic gravitational pulses through the terrestrial planets. Mercury, Venus, Earth, Mars, Jupiter, Saturn, and Neptune all start in their real 1 January 2025 positions; only Uranus has been relocated to 2 AU. Inward migration of ice giants is thought to have occurred in many exoplanet systems, producing 'warm Neptunes' and reshaping inner planetary zones.