The OP asked for opinion. I gave it. The OP didn't ask for explanation or reasoning why I would believe such. To state an opinion of what is, in answering the direct question, is not arrogance.
You made the statement that NO human knows such things else you would have known something about it. Yes, that is arrogance.
I happen to believe what I stated because the subject just happens to be something that I know a great deal about. But I also know that anything that I know, many others know as well. I also know that governments, militaries, and large corporations have all been developing strategies for utilizing processing in as much secrecy as they can manage.
It would be insane for any military to show all it knew about information processing to a potential enemy - and that means you.
30 years ago, I was working on military projects that have yet to be used in the open. And those were nothing compared to others even at that time.
But think about it. You know that technology advances exponentially. You know that "they" are in a position to have to keep their best behind closed doors. You know that they can see what you develop yet you cannot see what they develop. This gives them an even faster development rate. You know that this has been going on for at least 50 years. You know that the laser, for example was unheard of by the population for 20 years after the inventor came up with it.
And yet somehow you believe now that because you haven't heard them tell you all about what intelligence is and how it all works, even though this subject would be highly concerning to them, they just must still be totally ignorant on even what the word "consciousness" means.
Even the notion that a word cannot be defined is absurd in itself. A word is ALWAYS presumed with a definition within the person using it. They might not be able to explain that definition very well, but it isn't even a word without having one.
C'mon wake-up