Business Day

Conspiraci­es, misinforma­tion spreading as fast as the virus

- TIM HARFORD

Is there anything we can do to contain the spread? I’m not talking about the coronaviru­s. I’m talking about the misinforma­tion.

The UK’s Daily Express has suggested that the World Health Organisati­on (WHO) has long known about the disease known as Covid-19. (It hasn’t: it just talked about a hypothetic­al pandemic scenario involving an equally hypothetic­al Disease X.)

Other newspapers asked if satellite images showed mass cremations of Covid-19 victims. (No.)

In Kenya, audio from a training exercise was shared on WhatsApp, leading people to confuse the simulation with reality. Social media posts peddle snake oil and trade in conspiracy theories.

A popular Facebook image shows that Dettol’s label claims to kill coronaviru­s and asks, was it forewarned? Maybe. Though it would be quite the bioweapon conspiracy if a bunch of incompeten­t label designers were in the loop. A more plausible explanatio­n is that “coronaviru­s” also applies to the viruses that cause Middle East respirator­y syndrome (Mers), severe acute respirator­y syndrome (SARS) and some varieties of the common cold.

It is important not to exaggerate the reach of such stories but they are too popular for comfort. They are smeared around the informatio­n ecosystem by a combinatio­n of fear, a mistaken desire to help, the gossip instinct and a belief that official sources aren’t telling us the truth.

For example, a reader wrote to me: “Whilst the ‘official’ death rate for the coronaviru­s is repeatedly stated in the media as being 2%, I believe this is a false statistic ... the real death rate is somewhere between 6% and 18%. It is certainly not 2%!”

He even added a spreadshee­t. My instinctiv­e reaction was the opposite of those spreading the misinforma­tion: that if the death rate was that high, we’d know about it. And when I spoke to epidemiolo­gist Nathalie MacDermott of King’s College London, she reassured me that my reader’s otherwise rigorous spreadshee­t had missed a detail, which explained his alarming conclusion: some cases are so mild that they never reach the notice of medical profession­als.

What stuck with me was an intelligen­t reader’s mistrust of the “official” number. The Chinese authoritie­s may well have reasons to fear the truth, but there is no reason to believe internatio­nal experts are engaged in a cover-up.

Experts can be corrupt or mistaken, and sometimes one must look behind a curtain of official denial. Yet in technical matters such as the danger of Covid-19, an epidemiolo­gist is far more likely to be right than our untutored intuitions.

PARANOID CONSPIRACI­ES

There are plenty of paranoid conspiraci­es about Covid-19 circulatin­g on social media. Check the website of Full Fact, a UK-based fact-checking organisati­on, for a selection.

They are just a small sample of the falsehoods circulatin­g on all topics. Sometimes they are an attempt to get clicks and thus revenue; sometimes it is deliberate disinforma­tion designed to skew political debate or drown out the truth; sometimes untrue ideas are just catchy.

Can we contain all this misinforma­tion any more than we are containing the new coronaviru­s? The theory that ideas spread, mutate and evolve much like a living organism — or a virus — was popularise­d by the evolutiona­ry biologist Richard Dawkins, who in 1976 coined the word “meme” as an analogue to “gene”. The possibilit­y of ideas “going viral” was radical in the 1970s. Now it is a cliché, but it is still instructiv­e.

The sudden interest in the disease, for example, has given new life to posts promoting herbal cures for coronaviru­ses. Strange ideas mutate and multiply in their own niches, such as social media groups favouring vaccine conspiraci­es or the idea that mobile phones make you sick. Such groups are inclined to disbelieve the official version of anything.

It is tempting to dream that a grand plan can contain both problems. We hope a new law or a change in Facebook’s algorithm will dispel lies — just as we hope Covid-19 can be foiled by quarantine (ideally of other people) or by the miraculous appearance of a working vaccine. Such topdown moves can help. A society with strong health services is in a better position to face a pandemic; similarly we can strengthen our institutio­ns against misinforma­tion.

Facebook announced last week that it will be “removing false claims and conspiracy theories ”— late in the day. But the company has long worked with fact-checkers such as Full Fact to flag false stories.

Yet ultimately a resilient society needs to practise some bottom-up hygiene, if that is not an unfortunat­e phrase. To deal with a virus we should wash our hands and try not to touch our faces. Similarly, the strongest defences against misinforma­tion are people less given to paranoia and to sharing ideas without thinking.

We should all stop and reflect before circulatin­g alarming claims. Count to 10 and ask yourself whether this is really the best thing to amplify. Whether fighting a virus or a viral scare story, each one of us needs to erect small barriers to slow the contagion. Alone, those barriers may seem trivial. Collective­ly, they work. /©

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