iano writes:
Of course, what is real is always what you yourself decide is real. That includes the people (you decide are real) who confirm that the locomotive (you have already suspected was real) is really heading towards you.
Stile writes:
Correct. And I've decided that what is real is independent of what I decide is real. That is, I think reality exists on it's own, and I don't have any input as to its existence. I could be wrong, but every time I stub my toe on anything I don't believe exists, reality certainly shows it doesn't care what I think. Therefore, in order to see what does exist, I need some observations from reality.
What you finally decide is real isn't all that relevant. Granted, plenty of things flow out of what you decide - and you give an example above. It is a curious example in that you seem to need observations from the reality you have decided is independant of yourself to help you decide what is reality.
My main point was that you are always the final court of appeal for what is real - however you arrive at that decision. This:
I've decided that what is real is independent of what I decide is real.
...doesn't alter that.