Last night, Beijing time, X user Jan Brulson posted a challenge to Musk's space computing power plan. He said he had little respect left for Musk, though he had originally thought Musk was at least a decent engineer. But after hearing Musk claim that it is easier to "cool things down" in space, his last bit of respect evaporated. Brulson pointed out that the truth is exactly the opposite: a vacuum is the best thermal insulator, and in space, heat can only be dissipated through radiation. He believes that space data centers are extremely unlikely to become a reality — at least not in his lifetime.