I know that =P

But I noticed what it is you were talking about it, sorry. He says that in TC the past no longer exists, while you say the past DOES exist. Well, technically you're both correct. The past exists in the sense that although none of the events in the past have been destroyed, it is meaningless to seperate "the past" from any other time in history. In other words, in TC, the past in a sense = the future.