Ancient Illusion Teachings vs. Modern Simulation Theory

Our current best answer is that the old teachings and the modern simulation idea genuinely meet at one point and clearly split at two others. They agree that the world is not a fixed thing standing on its own "out there" — it depends on a mind or on being observed. Buddhist mind-only thought is the clearest old version: the world of objects is a production of mind, not something independent. On the modern side, quantum measurement, information-based physics, and Hoffman's view that perception is a survival-tuned interface all tie what is "there" to the act of observing, and Berkeley's "their being is to be perceived" is a tidy Western echo. Where they part is the source of the world and the way out of it. The traditions trace the world to a divine or conscious ground — Brahman, the One, the divine light — and offer a real exit through knowledge or awakening: Plato's climb out of the cave, Śankara's seeing through the appearance to Brahman, the Gnostics' escape through saving knowledge. The simulation argument instead points to a built substrate — a computer run by later humans — with no built-in escape and often no outside to reach. One sharp difference: a designed simulation loses nothing, while the old emanation stories assume knowledge and clarity decay on the way down. The traditions are not even one voice among themselves. On why a world exists at all, Vedānta calls it play with no motive, Plotinus calls it overflow, and only Lurianic Kabbalah assigns something like a reason — making it the closest match to the simulation idea's hidden assumption that the maker has a purpose. They also split on whether the world's separateness is real (Rāmānuja, Trinitarian descent) or only apparent (Advaita, Plotinus). The strongest counter-case is Thibaut's reading that the illusion teaching grew more sophisticated over time rather than degrading from an earlier, clearer source, which directly challenges the "degraded memory" idea. The biggest question right now is whether observer-dependence in the old teachings and observer-dependence in modern physics are truly the same claim, or two different claims wearing the same words.