Skip to main content

WiFi woes and the wonders of woo

I was hauled over to BBC Wiltshire yesterday to speak up against rumours of the malignant influence of WiFi. Swindon is outfitting the entire town with free WiFi, and it seems there was a discussion of this on a local TV show the night before. Ranged against a single voice of sanity were apparently two people from organizations campaigning against WiFi and phone masts (who are very happy to sell you meters to detect 'electromagnetic radiation', or tinfoil hats to protect your brain), and two concerned mothers. Very measured response, BBC.

I have every sympathy for the concerned mothers because the sort of information they get if they search the web and hit these campaigning organizations is really scary. To start with the websites always refer to radiation, making sure that WiFi is tarred with the same brush as nuclear reactors. They don't bother to point out that electromagnetic radiation is just stuff like light and radio. Then they cite multiple studies showing how electrosensitive people can feel the damage being caused by WiFi or mobile phones. What they don't point out is all these studies are anecdotal and uncontrolled. Whenever a proper, controlled, double blind test is done, these 'electrosensitives' aren't influenced by the WiFi. I'm not saying they're lying, but rather it's an example of the nocebo effect, the negative version of the placebo effect, where if you think something will give you a headache etc. it probably will.

What isn't pointed out is that WiFi is just another contribution to all the radio, TV, phones, and other electromagnetic traffic zapping around us all the time. And they're relatively low power, typically thousands of times weaker, for example, than the sort of transmitter used by radio hams.

The other concern explicitly mentioned to the radio show host was whether WiFi could influence pacemakers. Someone had been warned that the Swindon WiFi might mean he couldn't leave the house. But pacemakers have been thoroughly tested with stronger WiFi than is allowed in Europe without damage. When you think about it, a computer is much more likely to be upset by WiFi than a pacemaker, and they aren't - so it's not entirely surprising. A local surgeon who fits pacemakers pointed out that they have WiFi in the operating theatre where they fit them. Not a worry, he says.

I've saved the most horrendous allegation until last. Apparently, on the TV show, one of the campaigners claimed that the rise in lung cancer in the last century was not due to smoking but to the introduction of FM radio. Leaving aside just how bizarre a claim this is, flying in the face of some of the most detailed and persuasive research ever, I can't decide if this is silly or sick. It certainly should alert anyone who is worried by the material put out by these campaigners to the fact that their concerns aren't exactly rational. Now where did I put my tinfoil hat?

Postscript - If you want to see just how bad things can get in terms of the rubbish cited on electrosensitivity, see this article in the Independent, kindly pointed out to me by Austin Elliott. I really can't believe a respectable newspaper published that.

Comments

  1. Although I agree with your comments, I keep looking over my shoulder at the Law of Unintended Consequences - ie there's bound to be something (good or bad) that we don't yet know about the cumulative effects of electromagnetism. I wouldn't like to speculate on what that could be though I imagine if you could have a conversation now with Marie Curie about radiation she might have some thoughts about what she wished she'd known before she started work with pitchblende ores.

    I can't help thinking that we're not looking in the right areas; but there again I can't suggest where to look.

    Maybe some of your creative thinking might help?

    ReplyDelete

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 2010 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 exp

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

Why backgammon is a better game than chess

I freely admit that chess, for those who enjoy it, is a wonderful game, but I honestly believe that as a game , backgammon is better (and this isn't just because I'm a lot better at playing backgammon than chess). Having relatively recently written a book on game theory, I have given quite a lot of thought to the nature of games, and from that I'd say that chess has two significant weaknesses compared with backgammon. One is the lack of randomness. Because backgammon includes the roll of the dice, it introduces a random factor into the play. Of course, a game that is totally random provides very little enjoyment. Tossing a coin isn't at all entertaining. But the clever thing about backgammon is that the randomness is contributory without dominating - there is still plenty of room for skill (apart from very flukey dice throws, I can always be beaten by a really good backgammon player), but the introduction of a random factor makes it more life-like, with more of a sense