Musk told Rogan that captaining Tesla is the hardest of all his endeavors - and his endeavors include space travel.
Musk touched on the difficulties of having the kind of brain that has enabled him to build and run multiple high-tech companies at the same time.
All three positions play critical roles in advising the CEO on interactions with employees, the public, and regulators, three areas where Musk's behavior has been publicly called into question in the past two months.
Tesla is now worth roughly $US21 billion less than it was in the immediate aftermath of Musk's infamous "funding secured" tweet.
Tesla's stock and bond prices dropped on Wednesday - linked to the row over Musk's comments about Mr Unsworth but also following an unveiling by Mercedes that presents a challenge to the electric auto maker. "It might be great when it is turned on, but what if it doesn't turn off".
Asked about the wisdom of smoking marijuana while he is under investigation by the Securities and Exchange Commission for the take private tweet (which many observers suspected was a marijuana joke), Musk told the Guardian by email: "Guardian is the most insufferable newspaper on planet Earth".
"I don't care if he smokes pot, I don't care what he does drugwise, though it think it's disrespectful" to do it so publicly, Left said. "It is sort of like a cup of coffee in reverse".
He maintained that getting things done, especially being useful to others, was among his joys. "It just wasn't the way I operate", he said.
"It may sound corny, but love is the answer".
Musk later put forward that the medium on which these simulations operate is for the most part boring.
Musk also serves as CEO of SpaceX, an aerospace manufacturer that is a contractor for the U.S. Air Force. He contended that he ignores the majority of negative comments at Twitter, but has occasionally been drawn in and made mistakes.
"We're taking vast amounts of carbon from deep underground and putting this in the atmosphere - this is insane", Musk said, a reference to the consumption of fossil fuels around the world. Tesla and its CEO are now also facing a litany of lawsuits claiming market manipulation, including one filed Thursday by Andrew Left, a prominent short seller and the founder of Citron Research.
Musk is now of a mind that whatever the future of AI, it is outside of human control.
It turns out I'm not the only one not reassured by all this.
Musk appeared to get emotional while talking about harm being done to the atmosphere and oceans by burning fossil fuels.
Musk has a reputation as a "nano-manager", which makes the No. 2 job all the less appealing, Whiston said.
"The more carbon we take out of the ground, the more risky it is".
"If we were forever constrained to Earth, that would not be a good future".