Elon Musk's companies have been swapping IP and cash. He argues it makes his firms less prone to geopolitical risks.Harun Ozalp/Anadolu via Getty ImagesThe companies led by Elon Musk have increasingly become intertwined, even before SpaceX's acquisition of xAI.The firms have at various time shared employees and purchased batteries, software, and vehicles from each other.SpaceX …

