To Vic and other kids his age, the past didn't exist except as a quick, oversimplified Wikipedia snippets, that ultimately didn't matter because they weren't now.
Dolores wonders if that is all she really is, a little piece of now, relentlessly pushed forward by time, trying desperately to look back over her shoulder to see what the past could possibly tell her, but caught in a rush that refused to stand still long enough for her to hear what it had to say.