Last season on The Big Bang Theory, Sheldon made a major move after realizing that everything has changed around him.
When we see him this fall, what can we expect after this life-altering decision? Here's the latest we've learned:
He did, in fact, get on that train (vs. just squatting in the station, as some have speculated).
The bigger question you should be asking yourself is whether he ever stepped foot outside the train during his epic journey.