Hiya mball,
You said:
It's not your existence that is in question here. Point in fact, I'm quite willing to accept that "you" do exist with a capacity of engaged interaction within a community bulletin board. It's not much...but it's enough.
Possible, but unlikely. Besides, I have a developed imagination that may conjure far more interesting dialogues than any we have yet exchanged.
True.
But let's get a little more real here.
I can demonstrate that our Sun exists...and therefore why it's not unreasonable to expect and conclude that our own star will "rise" again in the 'morrow (after all, it's daylight somewhere on Earth at any given moment). Sure, our sun could go super-nova unexpectedly---but there's compelling evidential scientific theories/conclusions that suggest more immediate possibilities/probabilities are much more deserving of our worries and concerns than good ole' Sol exploding in our sleep. It's not "faith" that validates my confidence that "the sun will rise tomorrow"...it's an evidence-borne conclusion supported by evidences, likelihoods, and reasoned doubts. Employing your rationale, I utilize "faith" that I won't awaken with two heads on my shoulders, or a school bus in my bed. Sure...I guess you can merrily argue "it's possible"...but I ain't gonna loose any quality sleep over such unlikely "possibilities".
I didn't "decide" to exist, and neither did you. You had no say in the matter whatsoever. You are a biological product of two other people gettin' their groove on. That's all. It's that simple, that ordinary, that common. It's been happening for thousands of generations of procreating homo sapiens. No big deal.
Thing is...I don't have the time or patience or inclination to wonder if existence is all but some metaphysical construct of my singular mind. I've had enough physical interactions with both fine ladies and nature to satisfy any remaining sophist's inanities of pointless inquiry.
Bunk.
I acknowledge that your assumption is faith-based, and that's fine with me. But projecting your perspective as valid in application for all...is dumb.
Par example, when Escéptico asked you: "Why is 'reality exists' a faith-based claim" Is there any reason to believe it doesn't exist?"
You said: "Yes, the fact that it could all be a dream."
"The fact...?"
Suppositions and "maybes" are not facts, but they often do rely upon faith-based conclusions. There's enough "reality" out there to examine and experience to last a thousand human life-spans, and then some. And that is not a "faith-based claim".
;-)