So between vol. 3 and bedside Jerry becomes Jack's roommate. Was this ever explained as to how it happened? And what happened to the compound?
At the end of Volume 3 it mentions Jerry moved in with Jack because as Jerry said, “The Mathmetists came back”.
Nope, we haven't gotten anything on how they became roommates. And I'm pretty sure the compound stuff will be explained and expanded on in volume 4!! And same for the roommate situation!