O2 is NOT narcotic at recreational diving depths.
this looks like an argument, or was it intended as a joke?
It is a statement of fact, not an argument.
in order to be a statement of fact, it must be verifiable, and it is not. So, it it is not a statement of fact, and not an argument, then it must be a joke.
It is verifiable that no evidence exist that O2 is narcotic at recreational depths.
shame on you for trying to weasel out of owning up to your words.