How do you know what is inside and what is outside?
I take a look. Unless something really bad has happened, or I'm studying topology, this is usually pretty obvious.
Surely the experience of some things being outside of me, for example this keyboard, arises as a result of the belief that I am the body.
Vice-versa.
I have nothing against the materialist point of view, though people tell me that quantum physicists have issues with it, due to instant communication or something.
Nope. Quantum Mechanics doesn't allow for instant communication, nor does it conflict with materialism.
If you can experience non-duality, which looks no different from what you see now, you can quickly understand how instant communication could take place across the whole universe.
It can't.
(Just as an aside: Materialism in itself has no problem with instantaneous communications. It's reality that has the problem.)
This is because the whole sense of perspective and of distance arises only because of our notion of limited selfhood.
Again, this is backwards. We have a notion of limited selfhood because we are physically separated from other things.
As I pointed out a few posts up, there is no way around the fact that this is the order of causality except through a minefield of metaphysical baloney. If I hit a planarian with a hammer, it is that planarian that goes squish, and not any other.
Always.
I guess I get a bit skeptical of it, and other scientific pronouncements, as the scientists mostly don't examine their assumptions.
You keep claiming this. You have never presented any evidence for this claim.
And you use this baseless assertion to ignore
mountains of evidence confirming Quantum Mechanics, including the computer you are posting from, which would not work otherwise.
I would love to hear more of science from anyone who's aware of the assumptions of the objective mindset, but these guys seem a bit few and far between.
Not true. There are lots of working scientists who understand this. I won't claim that all of them do, but it's not something that's ignored by the scientific community.
Mostly they seem happy to just keep focussing outward.
Yes, that's absolutely right. Because they are scientists, not philosophers. They are trying to discover fact, not truth.
If the results of the experiment cannot be detached from the experiment itself, except through a conceptualisation, what does this really mean?
I don't know what it means. Looks like nonsense to me.