is the season 7 finale of The Big Bang Theory , which originally aired on May 15, 2014 . It serves as a major turning point for the series, focusing on Sheldon Cooper's struggle to adapt to massive changes in his personal and professional life. Episode Summary
: Leonard and Penny's engagement leads to talks of them moving in together, which Sheldon views as an abandonment of their roommate agreement. The Big Bang Theory - Season 7Eps24
: Reviewers at TV Fanatic noted the episode effectively balanced humor with significant character growth. The Discovery Dissipation | The Big Bang Theory Wiki is the season 7 finale of The Big
: The university refuses to let Sheldon switch his field of study from string theory to inflationary cosmology. : Reviewers at TV Fanatic noted the episode
: The comic book store burns down, removing one of Sheldon's few remaining comfort zones.
By the end of the episode, Sheldon decides he cannot handle these changes and boards a train to leave town, seeking a fresh start.