It very much appears that time evolution is unitary (with the possible exception of the born rule). That’s a linear algebra concept.
Generally, the structure you describe doesn’t match the structure of the comment you say has that structure.
Context is important.
We, all of us collectively, are deeply, deeply ignorant of what is a necessary and sufficient condition to be a being that has an experience. Our ignorance is broad enough and deep enough to encompass everything from panpsychism to solipsism.
The only thing I'm confident of, and even then only because the possibility space is so large, is that if (if!) a Transformer model were to have subjective experience, it would not be like that of any human.
Note: That doesn't say they do or that they don't have any subjective experience. The gap between Transformer models and (working awake rested adult human) brains is much smaller than the gap between panpsychism and solipsism.
"This statistical model is governed by physics": true
"This statistical model is like our brain": what? no
You don't gotta believe in magic or souls or whatever to know that brains are much much much much much much much much more complex than a pile of statistics. This is like saying "oh we'll just put AI data centers on the moon". You people have zero sense of scale lol