As someone who watched an MLCer come out of the tunnel, I have to say that I couldn't tell when he hit rock bottom. He did continue to process, but at what point Depression merged into Withdrawal wasn't clear. He did gradually become far less communicative with me (although he poured out his heart to several inappropriate people he'd never have trusted normally), and cycled very rapidly: he could talk enthusiastically about 8 different (and contradictory) life choices he might make in the space of 60 seconds--he was very confused. There were times when he seemed less depressed, but also times when he seemed more depressed. The depression lightened more during Acceptance, coming in shorter bursts at that point.
