I'll concede your empirical claims: senses come before concepts and socialization in humans is necessary for survival. Concepts being linguistic is not an empirical claim, but a philosophical one, and likely one that demands strained definitions. — Hanover
Fair enough. The ontology of concepts is thorny.
I often grasp issues and then spend some amount of time trying to precisely articulate them. — Hanover
My claim regarded early cognitive and linguistic development. You've already developed beyond that stage, so you have a linguistic and conceptual background that provides an explanatory basis for your articulations. Newborns don't. So, your personal experience isn't necessarily relevant.
What is the empirical evidence for this assertion? I'd think a dog understands what is his and what is not, which means he knows himself from the other and he has no langauge to say "get away from my food" other than his bark and bite, which is langauge in a broad sense I guess. — Hanover
To get the claim straight, I don't deny all forms of self-awareness in animals. Some (not dogs though) pass the
mirror test. What I deny is a self-construction, a self-consciousness, that is an ability to conceptualise a self, that, for example, one can imagine taking different courses of action etc. As for the self only making sense in context of the other, I consider that be a matter of definition. I can't make any sense of the idea of a self without an other any more than I can make sense of "North" without "South". The concepts are semantically interdependent.
Going nuts isn't the same as losing one's sense of self. — Hanover
Maybe I should have said "losing one's mind". If you lose your mind, you're not yourself are you? In fact, we even say of people that "they're not themselves" when they're suffering from relatively mild cases of mental illness. To put some more bones on this, there have been actual scientific experiments putting people through the "ultimate torture" described in the OP and they've had to be stopped very quickly due to the participants suffering severe hallucinations and other reality-distorting effects. As our sense of self is strongly correlated with and arguably completely dependent on our sense of reality, I consider that to be strong evidence of dissolution of the self due to social deprivation.
https://www.bbc.com/future/article/20140514-how-extreme-isolation-warps-minds
"... the most alarming effects were the hallucinations. They would start with points of light, lines or shapes, eventually evolving into bizarre scenes, such as squirrels marching with sacks over their shoulders or processions of eyeglasses filing down a street. They had no control over what they saw: one man saw only dogs; another, babies.
Some of them experienced sound hallucinations as well: a music box or a choir, for instance. Others imagined sensations of touch: one man had the sense he had been hit in the arm by pellets fired from guns. Another, reaching out to touch a doorknob, felt an electric shock.
When they emerged from the experiment they found it hard to shake this altered sense of reality, convinced that the whole room was in motion, or that objects were constantly changing shape and size.
...
The researchers had hoped to observe their subjects over several weeks, but the trial was cut short because they became too distressed to carry on. Few lasted beyond two days, and none as long as a week."