Gilfoyle explains to Jared that if he checks up on the Eagle eggs at the museum he might kill them because they are in a state of being alive and not alive as long as he doesn't know the outcome.

Sheldon is in the car on a road trip with his dad and brother. They are talking about roadkill, and his dad asks if it's alive or dead if it's still twitching. Sheldon mentions that it sounds like Schrodinger's Cat and explains the theory.

In this clip, Leonard explains on the radio how the Large Hadron Collider is being used to find subatomic particles like neutrinos.

After drawing out the plans, an architect seems to misunderstand the proportions of the building he must build. He mistakenly presents the customer with a scale model, instead of the actual building.

Penrose describes his black hole theory, which sparks an idea in Stephen's mind. Stephen reverses Penrose's theory and develops one of his own. Stephen suggests that the universe was born from a black hole exploding. The black hole has such strong space-time singularity that nothing can escape from it, even light. The black hole is triggered by the collapse of a star.