Elon Musk is not just a 21st-century captain of industry. The Tesla Motors founder also is a popular cartoon character.
Musk, the SpaceX founder, appears on the most-recent episode of "The Simpsons."
Before cracking jokes with Homer, he rides around on an electric rocket -- something that is totally implausible, the real Elon Musk said on Twitter.
The San Jose Mercury News captured Musk's truth-telling.