We learned that the other universe is technologically advanced. How so and how did they develop so quickly?
We discovered how Nina lost her right hand.
And how Walter got Peter from the alternate universe.
I would guess that somehow William Bell got stuck in the alternate universe and can’t return. We will most likely learn by the end of the season. If not then ... then next season, hopefully.
I quite liked the different intro. J
BTTF with Eric Stoltz?! Wow!
Until next case, my weird scientists!