And yet distinctions made based on the average of feelings about a bunch of related things are used every day, to great avail, and are absolutely critical to ev

And yet distinctions made based on the average of feelings about a bunch of related things are used every day, to great avail, and are absolutely critical to everyone--and I do mean everyone--'s decision-making ability and common sense. Just because it cant be rendered into a perfect line in the sand or measurable, objectively-defined system of classification doesn't mean it's not useful.