Not sure what you mean by 'negotiate', but aren't you saying that you're unable to study the truth value of my claim, much less duplicate it under identical conditions?
Yet it is still true that Big Dog is touched in the head.
That's my point. Very few propositions can be quantified and duplicated under similar conditions, to determine if they are actually true.
Yes, I am a lay dog psychiatrist, having studied many of them over the years. And I live with the guy. As for how I know it, I watch him. He chases soaring vultures, quite furiously. He stands over his ball, barking at it, sometimes for 20 minutes or more. He leaps into the air if some twig brushes against his leg. And even more such strange behaviors which I've never observed in any other dog.
So after much study, I have concluded it is true that Big Dog is touched in the head.
But how would I make a living or pursue my hobbies? Anyway, I'm not asking about me, but rather about you. How can you test my truth claim about Big Dog?
And then there is the word problem, the definitional issue. How do we agree on a formal definition of 'touched in the head'?
There is nothing inane about it. It's a simple proposition which I plucked out of the air, to test your definition of 'truth'.