Can We Reach Is The Existence Of The Original Of The External World Indispensable?

We can never reach the original of the external world. Since throughout our lives we merely deal with the electrical signals reaching our brains, we merely know the perceptions in the mind. The only world we know of is the world that exists in our minds: the one that is designed, recorded, and made vivid there; the one, in short, that is created within our minds.