I think this is the post that started this incredibly lengthy but slow moving off-topic exchange.
Philosophy Explorer wrote:I'm going to add to the OP. Not only is mind immaterial, the brain is immaterial as well! There's no such thing as a solid. For those who skipped their science classes, we have the Heisenberg Uncertainty Principle as a cornerstone of QM. This means we can't pinpoint the location of any atom because they get scattered throughout the galaxy. So how can we talk about the mind being located inside the brain when we can't specify with 100% accuracy the location of the brain?
PhilX
Phil, Your claim seems to be that science class teaches that matter is immaterial, which is wrong by definition. A brain is not a solid, it is made of different materials which makes it a mostly liquid emulsion. It is material (being made of matter). It is solid (different definition) in that it has mass and volume. It is made of parts that are not all in the same place (much like the galaxy) and thus has mass and volume and density. You seem to be working under a false assumption that empty space between objects must be discounted when computing volume.
This is only true if the empty space is functional. The volume of a boat hull is greater than a boat shape collection of rocks held apart with sticks. The volume is functional there (keeps the water out), so only water-repelling volume counts. Volume contained by the rocks counts despite space between the atoms there. Space between the rocks does not count since the question is if the rock thing will float.
Deep down, fundamental particles have never been found to have extension, or even defined location. The concept of density would thus not apply to them. That doesn't prevent macroscopic objects from having volume and location, or from being material.
QM just describes the state of any object with a wave function from which probabilities of measurement can be drawn. The wave function is fairly simple for small objects and very complex for brains, reducing their probability of location to a certainty to any reasonable precision.