If you can persuade someone to alter (not merely ignore) a value they believe to have been terminal, that’s good evidence that it wasn’t a terminal value.
This is only true if you think humans actually hold coherent values that are internally designated as “terminal” or “instrumental”. Humans only ever even designate statements as terminal values once you introduce them to the concept.
To clarify, I suspect most neurotypical humans may possess features of ethical development which map reasonably well to the notion of terminal values, although we don’t know their details (if we did, we’d be most of the way to solving ethics) or the extent to which they’re shared. I also believe that almost everyone who professes some particular terminal (fundamental, immutable) value is wrong, as evidenced by the fact that these not infrequently change.
If you can persuade someone to alter (not merely ignore) a value they believe to have been terminal, that’s good evidence that it wasn’t a terminal value.
This is only true if you think humans actually hold coherent values that are internally designated as “terminal” or “instrumental”. Humans only ever even designate statements as terminal values once you introduce them to the concept.
I don’t think we disagree.
To clarify, I suspect most neurotypical humans may possess features of ethical development which map reasonably well to the notion of terminal values, although we don’t know their details (if we did, we’d be most of the way to solving ethics) or the extent to which they’re shared. I also believe that almost everyone who professes some particular terminal (fundamental, immutable) value is wrong, as evidenced by the fact that these not infrequently change.
If terminal values are definitionally immutable, than I used the wrong term.