The Platonic Permutation

"The Platonic Permutation" features a guest appearance of South-African American entrepreneur and business magnate, Elon Musk as himself.

To apologize for reading it without permission, Leonard dances in the lingerie, asking Penny to post an image of him onto her social media as punishment.

The story was completed by Jim Reynolds, Jeremy Howe, and Tara Hernandez while the teleplay was written by Steve Holland, Maria Ferrari, and Adam Faberman.

It features a guest appearance of Wayne Wilderson as Travis, in addition to South-African American entrepreneur and business magnate, Elon Musk as himself.

[7] Digital Spy's Tom Eames said of "The Platonic Permutation": "Aside from a couple of sweet scenes with Sheldon and Amy, this was one of those episodes where you'd have a better time if you just looked at the photos and caught up on the synopsis on Wikipedia".

He and Eames criticized the lack of message for viewers about being thankful or generous and said that Howard's selfishness is instead rewarded by meeting Elon Musk.

[2] Preece was critical of the subplot saying Howard was "misused" by "providing lazy comedic relief to compensate for some of the more dramatic things" the show has done in "The Platonic Permutation" and the wider season.

[2][6] Eames opined that it was revitalizing to see "Sheldon act so mature by admitting that getting over Amy was the one thing he hasn't 'excelled at', and deciding to stay just friends", calling it "one of the most realistic moments the show has ever had".