In philosophy of perception and epistemology, naïve realism (also known as direct realism, perceptual realism, or common sense realism) is the idea that the senses provide us with direct awareness of objects as they really are. When referred to as direct realism, naïve realism is often contrasted with indirect realism.
According to the naïve realist, the objects of perception are not representations of external objects, but are in fact those external objects themselves. The naïve realist is typically also a metaphysical realist, holding that these objects continue to obey the laws of physics and retain all of their properties regardless of whether or not there is anyone to observe them. They are composed of matter, occupy space, and have properties, such as size, shape, texture, smell, taste and colour, that are usually perceived correctly. The indirect realist, by contrast, holds that the objects of perception are simply representations of reality based on sensory inputs, and thus adheres to the primary/secondary quality distinction in ascribing properties to external objects.
In addition to indirect realism, naïve realism can also be contrasted with some forms of idealism, which claim that no world exists apart from mind-dependent ideas, and some forms of philosophical skepticism, which say that we cannot trust our senses or prove that we are not radically deceived in our beliefs; that our conscious experience is not of the real world but of an internal representation of the world.
The naïve realist is generally committed to the following views:
Metaphysical realism: There exists a world of material objects, which exist independently of being perceived, and which have properties such as shape, size, color, mass, and so on independently of being perceived
Empiricism: Some statements about these objects can be known to be true through sensory experience
Naïve realism: By means of our senses, we perceive the world directly, and pretty much as it is, meaning that our claims to have knowledge of it are justified
Among contemporary analytic philosophers who defended direct realism one might refer to, for example, Hilary Putnam, John McDowell, Galen Strawson, John R.