Musk's odd expression at NYT event linked to SpongeBob fish

Elon Musk was even weirder than usual during an on-stage interview at The New York Times' BookDeal event in New York yesterday. One thing that stood out was the way he jutted out his chin to accentuate his defiant answers to the moderator's questions.

One Twitter user was sure he had seen the peculiar expression Musk was making, and after racking his memory, he found it — it was one of the fish that sometimes appears in the background in SpongeBob SquarePants.

See for yourself: