What If: We Don't Really Live in the "Real World"

When watching The Matrix and reading Heart of Darkness, a common theme we discussed in class was the concept of a system and a real world. In The Matrix, Morpheus showed Neo that the "world" he thought he had been living in his entire life was just a system within the "real world." Now, this concept may be a little difficult to grasp at first, but is actually possible. We could all be living in a system like Neo thought he was, but really we are all just images and our physical bodies are somewhere on a fetus farm. If this was true, would anybody be able to prove it? Can anybody prove it isn't? Maybe this exact scenario isn't occurring, but perhaps something similar is happening and none of us are aware of it. It seems a little crazy, but I can't help but wonder if something like this is actually going on in the world. Will I ever know for sure? Probably not. But it never hurts to ask the question, "What if?"