I must admit that I just don't understand a lot of what you're saying --
Others may choose to indulge your obtuseness but I will not. If you don't understand how your argument fails, you're not competent to do what you thought you could do -- prove immortality by mathematical means. Do not evade. Do not play word games. Do not argue by attrition of your critics. Either engage the discussion or concede it.
In order to assume that the event may not be simple chance (and I am not just somebody/anybody), we need to have a reasonable alternative to chance. If we have such an alternative, we're not stuck with chance...
Yes, we're familiar with your false dilemma.
You want to prove you have an immortal soul. But you have no evidence an immortal soul exists. So you have manufactured a dilemma in which, on the one side, we have the scientific model that adequately describes all that can be presently attributed to consciousness. On the other side we have an unholy union of all the different and disparate ways a person can be immortal. In order to prove immortality indirectly, you set out to refute what you set up as the alternative, purporting that if it fails then immortality must hold by default.
But the only argument you can muster is a statistical probability model you say makes it highly unlikely for the scientific model to produce individuals as they are, because each individual consciousness is the unique product of many factors that are each too improbable to allow science to predict the combination of them.
The dilemma you present is false. The method by which you've estimated the probability of an individual arising as-is by the scientific model is logically invalid.
We've all heard this many times before, Jabba. You've been told many times why it doesn't work, and not just by your critics here. You promise you'll "be back" to address those objections, but each time you just repeat the same broken argument. Do not simply repeat it -- fix it or abandon it.
So, my basic claim was that the reason we need a preceding "target" was to provide a reasonable alternative to chance.
You're equivocating what "target" means in the refutation. Try again.
Your basic claim is, and has always been, that the probability of you arising as you are by the scientific model is too improbable to be considered a viable explanation. Therefore the scientific model can't produce "you" and we have to consider other hypotheses. You conveniently have a hypothesis to set up against "chance" -- your notion of an immortal soul. And since you argue "chance" fails to explain consciousness, you "must" therefore have a soul.
No, "OOFLam" is not "the target." Come up with something that isn't just a knee-jerk rewording of your claim to slip by today's refutation. If you're going to change your argument, then explicitly tell us you're abandoning the argument summarized above in blue. I won't tolerate another of your infamous non-concession concessions.