"I think, therefore I am." If our world is simulated, it's still real; if this is all a dream, there still must be a dreamer. Zhuangzi dreamed he was a butterfly, and while he dreamed, he was a butterfly; who's to say the dream of being a butterfly is more or less real than the butterflies themselves? I say wonder about it, but don't worry about it. Maybe we're in the Matrix, maybe we're in the mind of Brahma, maybe this is all there is - but it's sure nice that there's something rather than nothing. Something-ness is real, the details are just trivia.