Brad, we have had our differences before, but I must say, I am deeply ashamed of you right now. How could you not offer Tom a theory? Shameful, just shameful! ;-)
Tom, I haven't seen QUANTUM LEAP, but I will venture a theory that the Waiting Room is the friends we made along the way.
Damn it. Okay, here's another theory: what if in this new generation of QL technology, the Waiting Room is instead a state of quantum limbo in which the subject is suspended in a moment of temporal grace, neither dead nor alive, existent nor gone -- until Dr. Ben has completed his mission at which point the personal timeline of the subject is reinstated to resynchronize with the chronological stream of historical constituents?
In addition, what if Dr. Ben's state of existence is in a semi-permanent state of temporal grace created by Ben having detached from his own personal timeline, holding Ben's body in indeterminate nucleostasis as the result of the particle confinement that resulted in his missing memories? What if the restoration of Ben's physical form is dependent upon his balancing the equation represented by his unknown mission that led to his first and subsequent leaps?