Musk then slapped his chest with his right hand, before flinging it diagonally upwards, palm face down. He turned around to audience members behind the podium, and repeated the gesture. “My heart goes out to you,

Elon Musk has seemingly done the unthinkable and shown his knowledge of Nazi history is far deeper than the ADL would like the public to believe.

Some across the political spectrum said the gesture looked like a "Heil Hitler" salute. The ADL said it was not.