Laird wrote:Arguably a "void" is a form of non-existence
If it has boundaries, then it has an existence, the same as any other existence. And there are causes for its existence, just as for any other thing.
this emptiness can exist "underneath" that which fills it
It doesn't matter where it exists. The fact is that there is boundary separating it from other things - as you've postulated it.
...that these unimagined things have no effect on anything else that might in turn impinge on consciousness. These things can make no appearance.
As I say, such things are impossible, given that they have boundaries and so they do indeed have effect on something other than themselves.
then the implication seems to be that there is nothing that is not the mind.
There must be something that has caused the mind, so there must be something that is not the mind.
And yet above you write that there is that which is not the mind, which causes it. And you also want to recognise sensory data, and chemicals, which likewise are not part of the mind and which seem to imply the existence of "a reality independent of thought". I am really interested to know if/how you resolve this glaring contradiction
It's not a contradiction once you understand it, but you don't want to go the steps necessary to do so. The reason you can't understand it is that you are isolating the problem into a compartment of your mind, where it is harmless, and has no teeth.
The way to solve it is, once you have discovered something that is false (eg, that there are things/boundaries independent of the mind), then you must
drop that false way of thinking. You must abandon it entirely. If you fail to do so then the delusion will corrupt your thinking and you won't be able to understand the problem.
Imagine a person who has an imaginary friend, and they want to understand why their imaginary friend is upset. So they go to the doctor for advice. The doctor explains to the patient that his friend is imaginary, and the patient responds, "I know he's imaginary, but he's still upset!" Or the patient might respond, "You
say he's imaginary, but then why is he upset?"
There is something that needs to happen on the side of the patient. There's a limit to what the doctor can do for him.