You would lose information in the process of constructing any abstraction.
You can't compute the next tick of the entire universe using a process that is contained within it. That would be like saying a single page of a book can contain the entirety of the book (without changing the size of the letters, obviously). It doesn't fit.
You can't compute the next tick of the entire universe using a process that is contained within it. That would be like saying a single page of a book can contain the entirety of the book (without changing the size of the letters, obviously). It doesn't fit.