He says he takes it as prescribed against occasional depression.
Knowing some folks who are working with their psychiatrists on their mental health and using ketamine under supervision: it seems ketamine is starting to prove effective for depressive issues.
The challenge is it's extremely potent and the dose is extremely patient-dependent. Miss a dose, mis-dose, or fail to realize you don't have the calibration right yet, and the risk for side-effects is high. Depression itself can also mask other conditions (like, counter-intuitively, mania; when you're too depressed to be manic you don't show the mania symptoms) that only surface for potential treatment when the depression is treated.
Most importantly: Musk can afford the kind of calibre of psychiatrist (and the time for observation) necessary for the therapy to be maximally effective. So if he's working with someone and serious about being treated, I wouldn't doubt ketamine therapy would be on the table.
(All of that having been said: mixing marijuana and ketamine is risky as hell; if Musk smoking on Rogan wasn't a one-off, he's doing his psychiatrist no favors introducing a second drug to his system that interacts with the same neural pathways and can create overshoot and bounce-back effects).
No one should trust a thing he says after his baseless libel against the rescue divers in Thailand. ABSOLUTELY no one trust should anything he says after the "funding secured" BS, and if you got that far, saw the obvious lies and fakes he posted to Twitter even before he bought the place, I don't know what else to tell you.
At this point it's safer to assume that if Musk says something it's wrong.
No one with his level of wealth should exist as a basic concept.
I submit the policy proposal that anyone who over $1 billion in net worth should lose all constitutional rights. If you are willing to hoard that much wealth for yourself without using it to help others you deserve nothing. You don't even need rights at that point.
Elon Musk's current net worth is about $500 billion. It only costs $40 billion/year to end world hunger. For the entire world. [1]
That's only 8% of his net worth.
He paid more to buy Twitter as a hobby than it would have cost him to end world hunger for a year.
In other words, Elon Musk could single-handedly end world hunger by liquidating his assets and it would be probably not even empty his portfolio, possibly ever if it were well-managed.
You only need $10 million to never work again and live a very generous lifestyle withdrawing at least 5x the US median income for yourself forever until you die, and Elon has hoarded that amount of wealth FIFTY THOUSAND TIMES.
[1] https://www.wfpusa.org/news/how-much-would-it-cost-to-end-wo...
Here is your intellectual mistake: Wealth isn't fixed. Musk didn't take his fortune from anyone else. He has been part of creating a huge amount of new wealth in his companies.
Tesla didn't use to exist. Now it's worth $1500B. That's new wealth, and Musk owns a part of it.
It’s ironic that you’re accusing the government of not doing enough because the US government used to spend a lot of money helping people by fighting diseases and other poverty issues around the world (USAID) before Elon Musk himself illegally joined the federal government and cut that program.
So really Elon Musk has had a direct negative effect on world hunger and poverty including US government policy on the matter.
Maybe you think $40 billion to solve world hunger a year is unrealistic and maybe the US government isn’t doing enough, but Elon Musk is literally having a negative impact on the exact issue. At least the US government is/was doing a non-zero amount.
Finally, you claim Tesla has created new wealth. I would submit that Tesla has stolen wealth from the people in terms of its main business of transportation. Remember when Elon Musk fought against multiple public transit projects? Remember the lie that was hyperloop and the boring company which diverted public attention away from more viable and realistic public transit projects?
Every car company CEO is out to derail public transit projects that aim to reduce car dependency and make our world more equitable to traverse, and Elon Musk is an especially bad actor in that regard. He is an ideological proponent of a wealth-divided transportation system, where have-nots sit in traffic paying off car debt and haves skip traffic through his private tunnels.
Every vehicle we are forced to buy from mega corporations is a wealth siphon. It’s the biggest thing that the average person buys that depreciates into nothing rather than appreciating or holding value like a home.