The Expulsion from Paradise is eternal in its principal aspect: this makes it irrevocable, and our living in this world inevitable, but the eternal nature of the process has the effect that not only could we remain forever in Paradise, but that we are currently there, whether we know it or not.
It will remain remarkable, in whatever way our future concepts may develop, that the very study of the external world led to the scientific conclusion that the content of the consciousness is the ultimate universal reality