AndrewPD writes:
Now if someone was investigation how an artefact was created should they rule out the possibility that something like the Pyramids was inspired by a mental state like a dream or desire or fantasy?
I see no valid reason to rule out entities that may be invisible to us being behind the behaviours observed in reality.
The problem is that people who think mental states have a non-mechanical component don't agree on what that component is. That's why we objectively exorcise the non-mechanical possibilities. Only looking at the mechanical possibilities may be a handicap but it gives us some common ground to work from.