I'm not sure, but I suspect that the Portal 2 reference might itself be a reference to the recurring Muppet Show sketch "Pigs in Space" (pronounced Piiigs innn

I'm not sure, but I suspect that the Portal 2 reference might itself be a reference to the recurring Muppet Show sketch "Pigs in Space" (pronounced Piiigs innn Spaaace). https://www.youtube.com/watch?v=tYjbkRktqIE https://www.youtube.com/watch?v=tYjbkRktqIE