Skip to main content

What's wrong with authority?

Recently I was berated on Facebook for appealing to authority. As it may not be obvious to everyone why this was a put down (as the picture makes clear it was), I thought it might be worth looking at the problem with authority in science - and why I wasn't actually falling for this failing.

Arguably the biggest issue with Ancient Greek science, an approach that spread its way through most of the medieval period, was the dependence on authority. Just as we still do in law cases, most classical natural philosophy was decided by argument rather than by experiment or analysis. If someone repeatedly won the argument on a topic they were regarded as an authority and in some cases - Aristotle is the most obvious example - considered a source of wisdom on pretty well everything as a result. Hence the infamous suggestion that women had fewer teeth than men because Aristotle said it was so, and no one bothered to check. (Actually I am sure plenty did check and found it to be wrong, but because they weren't Aristotle, they were ignored.)

This reverence for the word of Aristotle was shattered in science itself by the likes of Galileo and Newton, and thereafter it should not be good enough just to be an authority figure to be assumed correct on any topic. But it tends to still happen outside of science. A good example today of when we make a mistaken appeal to authority is when, for instance, we think that a Nobel Prize winning scientist has more weight outside their specialist field than do other people. There is no reason, for instance, to give weight to Linus Pauling's beliefs on the medical benefits of vitamin C, because it wasn't his area of expertise - but still people do.

However, this is quite different from preferring people with expertise as sources within their subject of expertise to a random person on the street. That is not an appeal to authority, it is just common sense. I'm not a scientist, I'm a writer with a very rusty physics degree, and a very slightly less rusty operational research masters. As such, I would never dream of putting forward my own theories in science. But if I want to describe a physical theory or idea, I will give more weight to the word of a well-established physicist than I would to the next person who sends me their new physics theory by email.

I get sent quite a lot of these off-the-wall physics theories. I would not use those in one of my books, except to raise an eyebrow at it. Instead I put across ideas coming from well-established physicists (if I'm writing about physics - not if I'm writing about health). This is not using an appeal to authority, it's the only sensible thing to do as I can't possibly test out or check their theories myself. However, if I used Richard Feynman's viewpoint to provide expertise on music or Niels Bohr on literature, then I would indeed be incorrectly appealing to authority. Which would be wrong (as anyone who knows what Feynman's taste in music was would probably agree).

In the case that started this piece off, I had referenced another famous physicist George Gamow on a physics matter, so this was not the case. It's easily done, but we shouldn't confuse a flag that we are accessing expertise with an appeal to authority.

Comments

  1. It's usually better to use the term 'appeal to inappropriate/irrelevant authority' as a way of signifying the problem with the argument you are criticising.

    ReplyDelete
    Replies
    1. Possibly - but the whole Ancient Greek concept of authority was that someone was an authority because he had won so many arguments, so his word should be taken as truth. That’s different from getting information from experts.

      Delete

Post a Comment

Popular posts from this blog

Why I hate opera

If I'm honest, the title of this post is an exaggeration to make a point. I don't really hate opera. There are a couple of operas - notably Monteverdi's Incoranazione di Poppea and Purcell's Dido & Aeneas - that I quite like. But what I do find truly sickening is the reverence with which opera is treated, as if it were some particularly great art form. Nowhere was this more obvious than in ITV's recent gut-wrenchingly awful series Pop Star to Opera Star , where the likes of Alan Tichmarsh treated the real opera singers as if they were fragile pieces on Antiques Roadshow, and the music as if it were a gift of the gods. In my opinion - and I know not everyone agrees - opera is: Mediocre music Melodramatic plots Amateurishly hammy acting A forced and unpleasant singing style Ridiculously over-supported by public funds I won't even bother to go into any detail on the plots and the acting - this is just self-evident. But the other aspects need some ex

Is 5x3 the same as 3x5?

The Internet has gone mildly bonkers over a child in America who was marked down in a test because when asked to work out 5x3 by repeated addition he/she used 5+5+5 instead of 3+3+3+3+3. Those who support the teacher say that 5x3 means 'five lots of 3' where the complainants say that 'times' is commutative (reversible) so the distinction is meaningless as 5x3 and 3x5 are indistinguishable. It's certainly true that not all mathematical operations are commutative. I think we are all comfortable that 5-3 is not the same as 3-5.  However. This not true of multiplication (of numbers). And so if there is to be any distinction, it has to be in the use of English to interpret the 'x' sign. Unfortunately, even here there is no logical way of coming up with a definitive answer. I suspect most primary school teachers would expands 'times' as 'lots of' as mentioned above. So we get 5 x 3 as '5 lots of 3'. Unfortunately that only wor

Which idiot came up with percentage-based gradient signs

Rant warning: the contents of this post could sound like something produced by UKIP. I wish to make it clear that I do not in any way support or endorse that political party. In fact it gives me the creeps. Once upon a time, the signs for a steep hill on British roads displayed the gradient in a simple, easy-to-understand form. If the hill went up, say, one yard for every three yards forward it said '1 in 3'. Then some bureaucrat came along and decided that it would be a good idea to state the slope as a percentage. So now the sign for (say) a 1 in 10 slope says 10% (I think). That 'I think' is because the percentage-based slope is so unnatural. There are two ways we conventionally measure slopes. Either on X/Y coordiates (as in 1 in 4) or using degrees - say at a 15° angle. We don't measure them in percentages. It's easy to visualize a 1 in 3 slope, or a 30 degree angle. Much less obvious what a 33.333 recurring percent slope is. And what's a 100% slope