There is a different substance, a different candidate to be considered the "stuff" from which our consciousness is made. This substance is completely tied to the physical world, it is therefore represented in the Standard Model, but it also appears to inhabit a realm above the physical world. What is more, it possesses the desired substrate-independence because it can traverse the world of both fermions and bosons — the material and the immaterial — giving an impression of how it might represent a potential solution to the mind-body problem.
