On the night of August 26, in a cozy evening spent playing with his son in their home, Elon Musk was laughing as X Æ A-Xii—Lil X—zoomed toy cars across the living room floor. Suddenly, Musk paused, looking at his son with a smile, and asked, “What’s one wish you have, buddy? I’ll make it happen.” Expecting a playful request, he was stunned when Lil X’s eyes sparkled and, with a seriousness beyond his years, whispered, “Dad… I want to be…”