Today in #DetectingDeception is the false comparison. I've seen this graphic a few places on social media and I don't know if it's authentic, but for this discussion, that doesn't really matter. Here's why something like this would have issues.

2/ When you look at information, there are a few relevant questions you might ask:

Is it true?

Is it in context?

Is it relevant?
3/ I started by looking at the source. There IS a Major Cities Chiefs Association, and they did produce a report on last summer's protests you can find on their website. https://t.co/2bXLmIN9qi
4/ I didn't see on their site or their Twitter feed any numbers about last week. If the graphic is real, I would hope the source for those numbers was at least said on air. (That doesn't help me now, and is a reason to make your graphics complete #TeachJMC)
5/ Are the elements of the graphic in context? Here's where I start to have problems. Looking at the original report, it states that there were around 8700 protests noted over a roughly 2-month period. If that's the left column, the right is 1 day.
6/ Comparing numbers from 8700 events to numbers from 1 event is a false comparison. It seems to be used to set up an appeal to hypocrisy - an accusation of sweeping damage from last summer under the rug while being outraged by "less" damage in the capitol.
7/ Remember that in appeals to hypocrisy, you are ignoring the fact that two things can both be bad. Injured officers are bad, regardless of context. Deaths in civil violence are bad, regardless of context. And even a hypocrite could be right the second time.
8/ Final question: is the comparison relevant. Maybe, but not for the reason you think. In the MCCA full report, there's this phrase. "... in most cases, the acts were perpetrated by individuals or small groups that infiltrated the larger protests. https://t.co/ww7GhixOY5
9/ I know, without good evidence, misinformation is claiming that antifa actually did the damage and violence bit last week. This has been debunked multiple times. The MCCA report is talking about things like this: https://t.co/wYhY9q6HYZ
10/ The relevance, then, would seem to be that the extremists who tried to take the capitol have opportunistically used protests before.
11/ Using numbers and graphics can make false comparisons look compelling, when really they are deceptive. Going back to the original sources can help you in #DetectingDeception
12/ And a reminder that if you want to get better at finding the problems with things public figures say, I wrote an inexpensive little book that teaches you how. Check it out, if you like! https://t.co/xHQSqY43A6

More from Society

I've seen many news articles cite that "the UK variant could be the dominant strain by March". This is emphasized by @CDCDirector.

While this will likely to be the case, this should not be an automatic cause for concern. Cases could still remain contained.

Here's how: 🧵

One of @CDCgov's own models has tracked the true decline in cases quite accurately thus far.

Their projection shows that the B.1.1.7 variant will become the dominant variant in March. But interestingly... there's no fourth wave. Cases simply level out:

https://t.co/tDce0MwO61


Just because a variant becomes the dominant strain does not automatically mean we will see a repeat of Fall 2020.

Let's look at UK and South Africa, where cases have been falling for the past month, in unison with the US (albeit with tougher restrictions):


Furthermore, the claim that the "variant is doubling every 10 days" is false. It's the *proportion of the variant* that is doubling every 10 days.

If overall prevalence drops during the studied time period, the true doubling time of the variant is actually much longer 10 days.

Simple example:

Day 0: 10 variant / 100 cases -> 10% variant
Day 10: 15 variant / 75 cases -> 20% variant
Day 20: 20 variant / 50 cases -> 40% variant

1) Proportion of variant doubles every 10 days
2) Doubling time of variant is actually 20 days
3) Total cases still drop by 50%

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