The strongest version does that.
"
Reductionism
There are multiple versions of reductionism.[2] In the context of physicalism, the reductions referred to are of a "linguistic" nature, allowing discussions of, say, mental phenomena to be translated into discussions of physics. In one formulation, every concept is analysed in terms of a physical concept. ..."
en.wikipedia.org
Thus the mind is nothing but a physical concept. And you know how the physical works. It has to be observed objectively. Indeed your usage of real is an abstract mental concept and nothing but a physical state in your brain and there is nothing more to the world than observation of the physical.