In both theory and practice, the Middle Way is a choice, pathway, or outcome that sits between to extremes. It has been referred to as the Golden Mean or the Third Way by philosophers of yore, but the idea remains the same. More often than not in life, when reflecting on our past behaviors and the choices we've made, we find the Middle Way present, albeit in a subtle way. Whenever we investigate something or consider possible courses of action or outcomes, the Middle Way tends to shine. It gives a lot of predictive mileage too, especially in science when we build a hypothesis that takes into account data that seems random. But let me be clear, the Middle Way is not an absolute rule or metaphysical principle. It is a heuristic - a cognitive algorithm that can help us navigate an inquiry. Recognizing it as such, suppose we ran with the Middle Way when doing metaphysics, and we got radical with it, perhaps by using it as a Razor to eliminate logical possibilities that to some measure are extreme. What would happen?
In the metaphysics of ontology, we are presented with two extremes: Idealism and Materialism. Both of these theories are making a claim about the kinds of turtles that are all the way down, or the ontic bedrock (OB) if you prefer. The former says that it's a mental state, the ladder latter a material one. When we invoke the Middle Razor to eliminate these extremes, what we're left with is either Dualism or Digitalism. Dualism says that a combination of mental and material states are fundamental, and Digitalism says that neither of these categories are the case: that information is in fact more fundamental than either the mental and/or material. The Middle Way between Dualism and Digitalism suggests that the OB is more likely a tripartite of an information state, a mental state, and a material state. I will call this Tripartism.
Because we cannot subject the OB to our senses and faculties, we cannot know if Tripartism is actually the case; but on paper, when comparing it against the Monist theories of Idealism, Materialism, and Digitalism, it gives us much more philosophical and scientific mileage than any Monism. It is also more open to future data, because Monism tends to produce dogmatic thinkers who have to force ALL the data into their frameworks without giving any ground to the competition.