Yes. It drew it after the fact, not before.
False. At the beginning of time, the possibility existed that a specific potential brain could come to exist, which would be the one inside my skull. That potential always existed, else my brain could not now exist. I had nothing to do with creating that target. I'm just a rider on the storm.
It was one of innumerable metaphorical targets, to stay with the analogy.
Which means nothing. All those other metaphorical targets were nonspecific to me. It is inevitable that things happen. It is unlikely that specific low- probability things happen. In this case, giganogargantuanly unlikely.
At the beginning of time, there was only one potential Toontown brain, a 10
80! : 1 shot. Now there's an actual one. Target hit. Unique-brain-assumption-laid odds beaten. Don't worry. It means nothing to you.
Point 1: No one said or says "shouldn't have happened."
I did. And I'm right, semantic niggles aside. A specific 10
80! : 1 shot is that unlikely to happen. That's why I can again predict with supreme confidence that your toe will not be lopped off by a meteor. I'm quite sure of it. Not the least bit worried that I'll be proved wrong. And you won't be winning the lottery either.
Point 2: "Converging on 1" does not equal one.
Well, if that's all you've got, then you can have that infinitesimal sliver. I don't even feel the need to argue over it.
Point 3: The Unique Everything Assumption implies that everything had a prior probability of not happening converging on 1, not just brains.
Yeah, we've been there and done that.
That's why, when using probability, we do make a distinction between specific, significant events and unspecific, insignificant events. That's what makes probability work.
I hope it is unnecessary to explain to you that what is specific and significant varies dramatically depending on what specific question is being asked or what specifically is being analyzed.
No answer to my question regarding at what point something crosses that line between unlikely and must-mean-something-special?
Definitely not until you specify a sample size. Nonpariel has already pulled that little trick.
If nonpariel's 20-sided die analogy is what you're talking about:
Of course there is no single answer. I suppose that's the cunning trap you think you're setting. But you're just kidding yourself.
And, of course, there are other factors you haven't mentioned. Practically, it is simply a matter of how certain I need to be that the die is loaded. The probability that the die is loaded increases with each consecutive 20. If my life depends on being right, and there is something valuable to be gained from taking the risk at all, I'm going to need all 20's. The required sample size depends on how much I want what is to be gained from correctly identifying the loaded die. That would determine the level of risk I would be willing to take.