Tesla Inc Chief Executive Officer Elon Musk is “thinking of” relinquishing his positions and turning into a powerhouse, the world’s richest man tweeted on Thursday.

“Thinking of quitting my positions and turning into a powerhouse full-time wdyt,” Musk said in the tweet, without elaborating.

It was not quickly clear if Musk, a prolific user of the social media platform, was being not kidding about stopping his jobs.

Musk, who is also the founder and CEO of rocket company SpaceX, and leads brain-chip startup Neuralink and infrastructure firm The Boring Company, said during a conference call in January that he expects to be the CEO of Tesla for “several years.”

“It would be great to have somewhat more spare energy on my hands instead of simply working constantly, from when I awaken to when I rest 7 days per week. Pretty intense.”

Last month, he found out if he should sell 10% of his stake in the electric-car maker, to which the larger part concurred. He has sold shares worth almost $12 billion since.

The billionaire is known for his Twitter chitchat and lively interactions with adherents which have in the past brought up administrative and corporate governance questions, lawyers have said. Musk was fined $20 million by the US Securities and Exchange Commission for tweets in 2018 and was needed to venture down as chairman.

Howard Fischer, an partner at law office Moses and Singer, said he questioned Musk’s most recent tweets abused any principles since they were too vague.

He added: “I think that Musk’s social media comments are subject to a substantial discount, as it were, by the market, as compared to other executives.”