If we accept that our perception of the world and the actual objective truth of the world in itself are disjoint - that we cannot know certain (or perhaps any) truths about the world - then we essentially are living life as an observer "watching a movie."
Ignoring the concepts of determinism and free will for now, we could imagine that (working with the idea that existence is "experiencing a series of moving pictures") we are watching the movie backwards. If you take a worldview with certain truths - gravity pulls two entities together - and negate all of them (Of course, it may be that not every "truth" can be negated, but I'm not sure if that matters) you arrive at the same worldview, right? Just from a different perspective.
Finally, my question:
If gravity pushes rather than pulls, and like magnets pull, and opposite magnets push, etc - reversing the causal arrow for every fundamental force of the universe - is it the same world?