he literally did it not once, but twice. i've been alive for thirty two years and done my fair share of autistic shit (programmer). But yknow what I've managed to never accidentally do? Anything even vaguely resembling a nazi salute. And yknow what? Fine, suppose for a moment it was an accident or whatever. If i were a billionaire figureheard of my company on national television in the seat of power of the free world, I would ensure I had media training and knew how to not have the international audience go "wow he just did a nazi salute, twice" if I didn't intend it. Remember George W stopping himself from saying the sound bite of "shame on me"? Elon is either literally, genuinely stupid, or he meant to do a nazi salute. And I honestly don't believe Elon is stupid from an intelligence perspective.

One last remark: if I did accidentally do a nazi salute on live television, do you know what I would do at the soonest available opportunity? Clarify that I'm not a nazi, it was an accident, and that nazis are bad. It's a surefire way to ensure you're not accidentally perceived as a nazi. Similar to how "Nazi Punks Fuck Off" really helped Dead kennedys in this regard.