This is an easy question. None of you or history or the universe would exist for I would not be around to dream/observe it. In fact, you all should be grateful that I deigned to exist at all
And because I always like to have a nice paradox: what makes you think we exist NOW? Maybe there is only the ONE, formless, unchanging, and the fact that we change proves we are false and do not exist. I mean, motion is kinda silly when you think about it... unit of distance per unit of time? How is that possible when space and time are mere components of space-time, hmm? And how is it that matter is mostly empty space and yet I can knock on wood? Though I've never had to knock on wood... though I know someone who has, and it makes me wonder if I could... makes me wonder if I should...