Elon Musk is a clown, but nobody on a dose of ketamine is doing anything, least of all making coherent gestures and political grandstands. Drug naive people should avoid having any degree of commentary on them, you always say the most ridiculous things.
Here, have a nice video of Aphex Twin on a light dose: https://www.youtube.com/watch?v=hqega6a2g6A
Elon Musk jumps around on stage as he joins Trump at rally
It's much more likely to be the Adderall.
"One reason that narcissists so commonly abuse drugs and alcohol is because the substances amplify their feelings of grandiosity and invulnerability. More so, narcissists often get stuck in the cycle of drug abuse because drugs readily cause the brain to deny there is a problem." https://illinoisrecoverycenter.com/narcissism-and-addiction/
Impulsivity mediates the association between narcissism and substance-related problems beyond the degree of substance use: a longitudinal observational study "A grandiose self-enhancement strategy should be reflected in motives of self-enhancement, such as increasing confidence through substance use." https://bmcpsychiatry.biomedcentral.com/articles/10.1186/s12...
Personality Disorders, Narcotics, and Stimulants; Relationship in Iranian Male Substance Dependents Population "correlation between stimulant use and histrionic personality disorder (P < 0.001) and antisocial and narcissistic personality disorders (P < 0.05)" https://pmc.ncbi.nlm.nih.gov/articles/PMC4553170/
I think Musk alone is just a really depressing ahole who has no longer any social feedback due to his position.