When most of the world pictures Elon Musk, they think rockets, electric cars, and flaming tweets. But over the past few days, another image has taken hold—one far more earthbound, hands-on, and unexpectedly heartfelt. In the wake of devastating floods that ravaged multiple Central Texas towns last week, Musk mobilized a swift and unprecedented relief effort that has earned him a new, deeply human nickname: “The Texas Savior.”