Illutions

Is your life one? There are academics who say you don't have a life. You're just a mobile application. This idea is rather unsettling. As software development and computers became more powerful, programmers started making simulations -- mimicking real-life situations in software. Scientists modeled everything from pandemics to planet formation. Soon complex and compelling societal models emerged. Extrapolating this idea, in the future there could be a possibility that we will have much more sophisticated and complex simulations that will presumably become self-aware, just like humans supposed are now. Going further with this thought, a historian might want to see what life was life centuries back and create a simulation for it. Now, what is to say that you are not just some simulation that is created? How do you know that you are real? Since we are asking these types of questions, lets take a step further and ask about morality? If this is just a Sim, why do we bother with being moral?