[s9e9] The Platonic Permutation -

To avoid awkwardness, Sheldon prepares topics like pets, vacations, and the weather.

For more details on the episode's script and dialogue, you can view the full transcript on Big Bang Trans . [S9E9] The Platonic Permutation

Howard, Bernadette, Raj, and Emily volunteer at a soup kitchen. Howard is initially reluctant and complains about the work until he meets Elon Musk , who is also volunteering there. To avoid awkwardness, Sheldon prepares topics like pets,

Jim Parsons, Mayim Bialik, Johnny Galecki, Kaley Cuoco, Simon Helberg, Kunal Nayyar, Melissa Rauch, Laura Spencer Howard is initially reluctant and complains about the

Elon Musk appears as himself, sharing a moment with Howard while washing dishes.

is the ninth episode of the ninth season of The Big Bang Theory , originally aired on November 19, 2015 . The episode centers on the characters' various Thanksgiving activities and explores the evolving dynamic between Sheldon and Amy following their breakup . Plot Summary