Part 4/12:
Researcher Eric Drexler from MIT has proposed a compact hypothetical design that could perform calculations at an extraordinary scale, as well as Robert Bradbury’s “matrioska brain,” a concept envisioned as a Dyson Sphere that could support up to (10^{42}) operations per second. Intriguingly, if we were to focus on simulating individuals rather than the entirety of the universe, the actual computing requirements could be far less than initially theorized, enabling the prospect of a compact simulator capable of creating vast numbers of mini-universes.
Philosophical Considerations
Philosopher Nick Bostrom has popularized the debate surrounding simulation theory with three possible futures for advanced civilizations: