Well, macky, you have those arguments with your brother, I have them with my mother. I finally broke her down a few weeks ago and got her to concede to the point that "Neither of us can prove either side without more time."
For the record, darkstate01, my mother insists she saw the virgin Mary. As did hundreds of thousands of others. The event is widely known: http://www.zeitun-eg.org/stmaridx.htm .
Both my parents saw it. All four of my grandparents saw it. All of them insist that while all they saw was a light, they couldn't figure out a shape or face, while in the "pictures" it's clear that there was a face. Some doctoring happened somewhere, but something odd did happen years ago on the top of that church. There are literally hundreds of thousands of eye witness reports, pictures of doves flying in the middle of the night, and a light was seen by a significant part of my immediate family just hovering/wandering.
I keep getting pushed the question "What is it we saw, and don't say lasers because this was in the 60's! Lasers were not that advanced!" To which my answer is always "I don't know. I won't be afraid to admit my ignorance. However, don't just "logically" jump from seeing a light to the existence of a deity based on what you saw and your prerequisite knowledge. If I had told someone that what they saw was a toe of a massive monster in the sky, and they believed it, it does NOT make it true."
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