To get rid of a couple quick things, first, though it means going out of order...
That originated with me, from one of the examples where I demonstrated that unknown probabilities are not necessarily reasonable to consider equal. I also brought it up again in this case.
It's worth noting that, in a later post, I did give a couple general examples of some of the kinds of tricks that could be used to do so, though not all I thought up.
More specifically, I pointed out that they were neither included nor excluded. If you want to take the implications of that further, it does grant Fudbucker a little leeway for that part of the discussion.
That would be the concept that Fudbucker was intending to invoke originally, given his statements, and seems to actually have invoked later. The actual concepts in question look like they shifted just a little bit as the examples changed, for that matter, and people went with them as they changed instead of calling that out. That led to objections when he was arguing just barely on the valid side of how it was presented.
True, but that's not all that relevant when the point at issue is just the dichotomy of potentially possible and impossible. The difference between potentially possible and possible is the repeatedly cited stumbling block that he's tried to side step this whole time when dealing with his assessments of ESP and advanced alien life, but it's not applicable to whether it's reasonable to allow for the unexpected.
You could always request that the mods move the thread. No shame in correcting what you view to be a mistake.
Now for something a bit more meaty.
In short, you admit that alien life and ESP are not equally probable. Given how much you've argued otherwise previously, though, I'm not going to just let the matter rest there.
1 While partially true, we can look at the underlying probabilities that we can either reasonably find values for or, in cases like ESP and alien life, simply determine the general natures of the underlying probabilities in question. The likelihood of there being one or more planets in a unidentified star's Goldilocks Zone, for example, is significantly different in nature to the probability that something is the case when it has the feature of not being logically impossible, but also has the feature of being impossible under the most useful models of the way things work that we currently have and has not been reliably observed anywhere, given that, while one or more planets being in a unidentified star's Goldilocks Zone is also not logically impossible, it has been observed elsewhere and is entirely reasonable under the most useful models of reality that we have available. Not all logically possible claims can be reasonably considered equal, in other words. If all the underlying probabilities for advanced alien life can be shown to be not logically impossible, have solid evidence that they can occur, and are possible under the most useful models of the way things work that we have, while any of the required underlying probabilities for ESP can be demonstrated to be either logically impossible, lack solid evidence that they even can occur, or are impossible under the most useful models for the way things work, it can be reasonably concluded that the probability of ESP existing can be reasonably considered to be less than the probability of advanced alien life existing. This actually is the case, for that matter, as you've already effectively conceded.
I'm not even going to try to discuss further nuances, though, without you directly agreeing here.
Potentially, much as that applies best to claims like "Thridges exist," when what a Thridge is is left undefined in the first place. There's no way to even determine what underlying probabilities there are in the first place in such cases. When what underlying probabilities there are can be determined, though, this particular option isn't usually viable.
To keep hitting home this point, you're admitting again that ESP and advanced alien life are not equally probable.
And here, you're being logically inconsistent, at best. To summarize what you said, alien life might not exist, therefore it cannot be determined that a god appearing is more or less likely than alien life, but it can be determined that ESP is not equally probable. In short, you're misunderstanding the nature of probability calculations in your argument. Alien life may indeed not exist. However, it also may exist. Probability deals with, in short, the set of available possibilities as a whole. The calculated chance for an event indicates the size of the subset where something is the case divided by the size of the whole set of available possibilities. Adding to that a bit, the only way that you can validly limit the set being evaluated to the set without alien life existing is with knowledge or assumptions that are not validly part of the evaluation in the first place and are inconsistently applied on top of that. In short, you're arguing fallaciously from the start.