Underlining my point for the tragically obtuse.
The troll offers bullshit.
Science defeats bullshit by requiring a strong reference to observation etc.
In polite, sane company this is a non-issue.
But in public conversation, ya, it’s an issue. Trolls happen. In fact I would call trolls the greatest enemy of sane public conversation.
You can’t describe any sensation. Not sight, sound, smell, feeling. None of that. All you can do is refer to a shared sensation.
“You smell that?”