The conversation didn’t follow that mood: When Musk was told the others would not accede to his demand for control of the company, Brockman said he got angry and upset. He sat for several minutes thinking quietly.

Then, in Brockman’s telling, Musk said, “I decline.” The SpaceX and Tesla founder “stood up and stormed around the table…I thought he was going to hit me. He grabbed the painting and started to storm out of the room. And then he turned around and said, ‘When will you be departing OpenAI?’”

Brockman and Sutskever didn’t leave or commit to Musk’s vision. Musk stopped his regular donations to the company’s operating budget, and within six months, he would leave the board, though he paid for office space the company shared with Neuralink until 2020.

As today’s legal battle over the future of OpenAI proceeds, scrutiny has settled on a key period in 2017 when the organization’s original co-founders disagreed about who would control its future, eventually bringing us Musk’s lawsuit against his co-founders.