Billionaire Elon Musk, the CEO of Tesla and SpaceX, has shared a picture on Tuesday of him holding his son X AE A-XII in his arms.

The caption on the now-viral picture read, "Das baby kann noch keinen löffel benutzen." The caption has left a lot of people confused over its meaning. It apparently means "The baby cannot use a spoon yet" in German. Elon Musk welcomed his first child with girlfriend Grimes, a Canadian singer, on May 4. The couple initially named their son 'X Æ A-12.' Explaining the meaning behind the name, Grimes reportedly said, "'X' stands for the unknown variable, 'AE' is the musician's 'elven spelling of AI (love &/or artificial intelligence),' 'A-12' is, as gathered, a reference to the Lockheed A-12, or, in Grimes' words, the 'precursor to [the] SR-17 (our favourite aircraft). No weapons, no defences, just speed. Great in battle, but non-violent. A=Archangel, my favourite song." However, they later changed the boy's name to X AE A-XII, according to California's naming convention which allowed only use of the 26 characters in the English language for baby names.

Elon Musk is already a father of five children, Griffin, Kai, Xavier, Saxon, and Damian, from his first marriage to author Justine Wilson, while his newest son is his first child with Grimes. The Canadian singer has been in a relationship with Elon Musk since May 2018 and the couple confirmed the same during their appearance at the Met Gala.

Das baby kann noch keinen löffel benutzen pic.twitter.com/UETqVIA4BP

— Elon Musk (@elonmusk) July 21, 2020