George Berkeley was one of the three most famous British Empiricists. (The other two are John Locke and David Hume.) Berkeley is best known for his early works on vision (An Essay towards a New Theory of Vision, 1709) and metaphysics (A Treatise concerning the Principles of Human Knowledge, 1710; Three Dialogues between Hylas and Philonous, 1713).

George Berkeley, (born March 12, 1685, near Dysert Castle, near Thomastown?, County Kilkenny, Ireland—died January 14, 1753, Oxford, England), Anglo-Irish Anglican bishop, philosopher, and scientist best known for his empiricist and idealist philosophy, which holds that reality consists only of minds and their ideas; everything save the spiritual exists only insofar as it is perceived by the senses.

Comparing The Matrix and George Berkeley’s theory of Immaterialism
George Berkeley had a theory of immaterialism in which he theorizes that objects do not exist and that they are actually perceived by the individuals. In The Matrix, the question “What is real?” can relate to George Berkeley’s Theory of Immaterialism. The Theory of Immaterialism relates to the film The Matrix through the idea of finding out what is real and what is not. Idealism of perception in the mind of what is real and what is not.

Are you real? What about me?
These used to be questions that only philosophers worried about. Scientists just got on with figuring out how the world is, and why. But some of the current best guesses about how the world is seem to leave the question hanging over science too.