Hours after proposing to buy Twitter worth $41.39 billion, Space X and Tesla CEO Elon Musk on Thursday said that he is not sure if he will be able to acquire Twitter. Speaking at a TEDx conference in Vancouver, Musk said, “The civilizational risk is decreased the more we can increase the trust of Twitter as a public platform. And I do think this will be somewhat painful. I am not sure that I will be actually able to acquire it.”