Great questions.
"Are you using "subjective reality" and "personal world" to mean simply "whatever I believe"? "
No. Whatever appears to your mind, will be in your world, you dont have to believe it, it merely appears to your mind. Your world and your mind are inseperable. Things will appear to your mind without you having to believe them to exist before they exist.
"Are you saying "reality is only what you believe" so if you don't believe it then it doesn't exist? - that there is no difference between what exists and what I believe? "
When you go to sleep and you dream, the 'waking world' ceases to appear to your mind. When you are dreaming the 'dream world' appears to your mind. Both these worlds exist because they appear to your mind. Its how they exist that is interesting. Where does one go when the other vanishes? You dont have to believe them for them to exist, they will just be there appearing to your mind. How do they exist? What do you believe?
"I think an answer of "for you if you don't believe it, then for you, it doesn't exist" is too easy an answer and is really not the question. "
I agree. Similarily, if things came into existence simply by believing them to then, i could believe i have a million pounds in my bank and it would exist. So how do things come into existence? They appear to the mind. How do they appear to the mind?
"If I don't believe in a god, that would have to then mean he doesn't exist. Others would strongly disagree - saying he exists whether I believe it or not. I can act as though he doesn't exist but does that erase him from reality? Would he have an existance separate from my believe?"
God exists for a mind that he appears to. He appears to others minds, then of course God exists. But how does God ultimately exist to everyone and not just one persons mind? I had a dream last night where i was flying, just because it didnt appear to your mind doesnt mean that it didnt exist, it did exist, it just didnt appear to your mind. It was hidden from your mind. Did i believe it existed? Yes. But HOW did it exist?
"If I insist 'Matilda' is untrustworth, I'm not going to trust her. But as it turned out she was very trustable, has proved it so, and now I believe it. I was wrong.
Question: Wouldn't Matilda have indeed been trustworthy before I believed it? "
No, she wouldnt have been trustworthy before you believed it. Why? Because what appeared to your mind then made you believe that she was definitely 'untrustworthy'. She is neither inherently trustworthy or untrustworthy, she is whatever appears to your mind at that time. Reality is not 'only what you believe' and 'if you dont believe it it doesnt exist'. Because things depend on something causing their existence to arise, they will appear to exist whether you believe them to or not. The terminolgy of exist and belief maybe needs defining.
"Then there is an independent reality that doesn't have anything to do with what I think or believe"
No. Independent means seperate from anything else. Reality is not seperate from the mind, so its entirely dependent on the mind, therefore, there is no independent reality existing anywhere other than the mind.
The questions you could ask next is where is the world that others see? Is that seperate from my mind? Or what causes others to experience things in a different way than me?
You can email me privately if you wish to continue this discussion.
Jack