^ With INTP's especially, time passes by intervals. It's like reading Return Of The King. The stories are told in segments and Tolkien switches between the segments, and they restart exactly where they left off. Most SJ's have a few hours to a few days before they are ready to return. I haven't found any return time for NF's, although it does seem to be about six hours (I live with one). NT's are instantaneous. SP's are completely unpredicatable; they can either suffer from total amnesia, or have memory better than the IRS.