Mankind’s Martian “destiny” is literally on shaky ground. SpaceX spearheading our interplanetary expansion is headquartered in Los Angeles. What if the Big One finally hits California? Without SpaceX/Musk, it would take an extra decade or longer, for humans to set foot on the Red Planet, if it happens at all. It would alter the timeline severely, though the general “21st century” timeframe would remain in place.