I will give you the thread of my opinion; let's talk about it if you like.
Zuckerberg seems now on the defensive about how he used his subscriber data. He tells us that his next target is a kind of virtual reality that integrates into "real" through augmented reality devices. You can delude yourself that this is so, that Facebook is "normalizing" itself to the canons of the present world.
IMHO this is not what is happening. Mark has learned Libra's lesson; the ambitious plan meets resistance, it is useless to explain it to those who then put a spoke in the wheel; better let it believe it is a harmless project.
Through Facebook, Meta has already collected data on all humans more than any existing private organization. Through augmented reality devices, he will collect many moments of the individual's life and collect experiences. Experiences make us credible to others; they recognize us by our experience, it creates the unicum we are when we interact with others. Progressively it is this value that Meta will collect.
Will we distinguish an artificial neural network trained with our experience from ourselves in the future? But above all, will others be able to determine us from our simulacrum? Still, in 30 years, when will memory and computational power grow even more exponents?
Read between the lines. Meta means beyond. It has the symbol of infinity. What Meta wants to sell in a generation is immortality, or at least something that can be believed to be so by the majority. An AI simulacrum trained with the life experience of real people.
As Marx said, capitalism invades every space from which to extract value. Zuckerberg has learned the lesson of Covid; he has realized that about death, we are not much ahead of the ancient Egyptians. The fear (of death) is always there, and it is (as humanity) making us do whatever. Vax or Novax, opposed, but you can see it well; both have a common denominator, fear of death.
Second life has already failed; that's not what he is thinking about. Nobody can seriously suppose that he is planning to make money selling augmented reality devices, ludicrous. If your data can deceive who is close to you, it can allow him to create a representation of yourself that will exist forever, a simulacrum; Mark is developing the final product. And also the ultimate religion. It is integrating the thinking about transhumanism that is currently limited in the technological elite.
Now think about the implications. Immense. Will the trained AI be legally the same as the original? Will he/it inherit his possessions? What effects on the intellectual vitality of the human species, removing the mental limit to the finitude of existence, true and false, whether the simulacrum is, provided that it is possible to define it in these terms?
We are venturing to use technologies that modify humanity with the ethical-humanistic reasoning centuries behind the scientific one.