I see Cambridge Analytica is trending again because of this Channel 4 documentary exposing the Trump campaign’s attempted deterrence of Black voters in 2016.

Unpopular opinion: This documentary has some big structural flaws.

Why? Hear me out… https://twitter.com/Channel4News/status/1310625842888880129
A general point: How is it possible that not a single expert was consulted on this?

Lots of ppl have studied this & would have been able to contextualise some of the claims…

E.g. @kreissdaniel, @shannimcg, @jesse_b_p, @ajungherr, @sivavaid, @davekarpf, @eithanhersh
Had they bothered to ask, @davekarpf would have told them that this is “just” negative advertising (which is still despicable), but not structural voter suppression (eg closing polling stations, etc.). More in this short thread here: https://twitter.com/davekarpf/status/1310796399655694336?s=20
@sivavaid has summarised his main points here: https://twitter.com/sivavaid/status/1310702419832119300?s=20
Not once does the documentary properly address the question if this kind of shadow advertising on Facebook actually works. Instead, it simply assumes that this is the case because it fits the narrative.
“Turnout in ward XYZ went down & many people in this ward were marked as deterrence and targeted with ads => the latter caused it“.

But correlation is not causation.
Evidence that points to other, structural factors at play & helps explain low turnout is only addressed in passing.

We get a brief mention that Democrats (to this day) simply seem to assume that Black voters will automatically vote for them...
...to the extent that Hilary Clinton didn’t really campaign in one of the key examples presented in the documentary, Wisconsin, but that’s it.
Don’t worry, there’s still lots in this documentary to be rightly concerned about.

Yes, we should be concerned about Facebook’s central role in elections, its handling of user data, its cooperation with political campaigns (of all colours) and some of the tools it has built.
Yes, political adverts on social media should be accessible in a public database, with information on who paid for them, who was targeted, who saw them, for how long etc. so that we can study effects. Not an expert on this but election rules probably also need some updating here
Yes, the way personal data seems to just lie on the street in the US (and elsewhere)—up for grabs for anyone who wants to use it and has the money to do so—is a problem and should be regulated/curbed.

We should also have a wider discussion ab political advertising & limits.
Finally, does the documentary spell a problem for Brad Parscale because it shows that he lied to Congress about the campaign not targeting Black voters (which might lead to perjury charges)? Again, yes.
But the central claim--that these ads are the most pressing worry for US democracy--are on a very shaky foundation & a massive distraction from more fundamental problems.
Finally, writing threads like this gives me no joy. Channel 4 is a top broadcaster with excellent journalists. Exposing Cambridge Analytica as the sham it was, was a milestone of investigative work. But this is also why such obvious oversights set me on 🔥
Ways to avoid this:

1⃣ Talk to the experts (not me, this is just one of my pet interests). They are here, on Twitter, and elsewhere & usually happy to talk even though they gain little from it.
2⃣ Read academic literature, not just media reports
3⃣ Tone down the causal language
Addendum: Seeing that this has gone "viral", here are some additional comments that came up which are relevant and interesting. First up, this good critique by @TomDobber who (I think) recently finished his doctorate on micro-targeting. https://twitter.com/TomDobber/status/1310915664857763840?s=20
Second, this critique by @RMAjayi who makes a valid point and points to other scholars/activists on this that I had missed: https://twitter.com/RMAjayi/status/1310956995508396032?s=20
Third, a list of voter suppression efforts with very real, measurable, and awful effects. https://twitter.com/coribush/status/1311328706296770561
You can follow @_FelixSimon_.
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