In its early days, the Web was often imagined as a global clearinghouse—a new type of library, with the sum total of human knowledge always at our fingertips. That much has happened—but with a twist: In addition to borrowing existing items from its vast collections, we, the patrons, could also deposit our own books, pamphlets and other scribbles—with no or little quality control.
Such democratization of information-gathering—when accompanied by smart institutional and technological arrangements—has been tremendously useful, giving us Wikipedia and Twitter. But it has also spawned thousands of sites that undermine scientific consensus, overturn well-established facts, and promote conspiracy theories. Meanwhile, the move toward social search may further insulate regular visitors to such sites; discovering even more links found by their equally paranoid friends will hardly enlighten them. Is it time for some kind of a quality control system?
People who deny global warming, oppose the Darwinian account of evolution, refuse to see the causal link between HIV and AIDS, and think that 9/11 was an inside job have put the Internet to great use. Initially, the Internet helped them find and recruit like-minded individuals and promote events and petitions favorable to their causes. However, as so much of our public life has shifted online, they have branched out into manipulating search engines, editing Wikipedia entries, harassing scientists who oppose whatever pet theory they happen to believe in, and amassing digitized scraps of "evidence" that they proudly present to potential recruits.
A new article in the medical journal Vaccine sheds light on the online practices of one such group—the global anti-vaccination movement, which is a loose coalition of rogue scientists, journalists, parents, and celebrities, who think that vaccines cause disorders like autism—a claim that has been thoroughly discredited by modern science.
While the anti-vaccination movement itself is not new—religious concerns about vaccination date back to the early 18th century—the ease of self-publishing and search afforded by the Internet along with a growing skeptical stance towards scientific expertise—has given the anti-vaccination movement a significant boost. Thus, Jenny McCarthy, an actress who has become the public face of the anti-vaccination movement, boasts that much of her knowledge about the harms of vaccination comes from "the university of Google.” She regularly shares her "knowledge" about vaccination with her nearly half-million Twitter followers. This is the kind of online influence that Nobel Prize-winning scientists can only dream of; Richard Dawkins, perhaps the most famous working scientist, has only 300,000 Twitter followers.
The Vaccine article contains a number of important insights. First, the anti-vaccination cohort likes to move the goal posts: As scientists debunked the link between autism and mercury (once present in some childhood inoculations but now found mainly in certain flu vaccines), most activists dropped their mercury theory and point instead to aluminum or said that kids received “too many too soon.” "Web 2.0 facilitated the debate of these new theories in public forums before their merits could be examined scientifically; when they were studied, the theories were not supported,” notes the Vaccine article.
Second, it isn't clear whether scientists can "discredit" the movement's false claims at all: Its members are skeptical of what scientists have to say—not least because they suspect hidden connections between academia and pharmaceutical companies that manufacture the vaccines. (This, in itself, is ironic: In 2006 the British investigative reporter Brian Deer revealed that Andrew Wakefield, the British scientist who famously “showed” the connection between vaccination and autism in a now-retracted 1998 article in the Lancet, was himself handsomely compensated by trial lawyers who were readying to sue the vaccine manufacturers.)
In other words, mere exposure to the current state of the scientific consensus will not sway hard-core opponents of vaccination. They are too vested in upholding their contrarian theories; some have consulting and speaking gigs to lose while others simply enjoy a sense of belonging to a community, no matter how kooky.
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