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Jun 17 10 tweets 3 min read
Important finding from our analysis of #ShireenAbuAkleh’s death: the forensic calculation used by major media outlets to determine the shooter’s distance is incorrect.
This was used by @bellingcat @CNN @wapo to implicate an @IDF shooter, and by @elderofziyon to exclude the IDF.
The original work used the time delay between the supersonic shock wave of the bullet passing next to the camera, and the muzzle blast coming from the rifle, to determine a distance to the shooter of 175 to 197 meters.
Two different forensic experts: Robert C. Maher and Steven Beck performed this analysis, reaching similar estimates, which were used to implicate an IDF force located at a similar distance from Shireen.
@Israellycool correctly identified that since the camera was located behind Shireen, the distance between the IDF and the camera is around 210m, above the upper limit of 197m, reducing the likelihood that this specific IDF force, in its documented location, is responsible.
However, both of these analyses are incorrect, as the calculation doesn’t account for the distance from the arriving bullet to the microphone.
The bullets are known to have hit the journalists and a tree that were 10-15 meters from the camera. That means 30-45 milliseconds should be added to the 300-310 ms delay measured in the soundtrack.
This chart shows the distance to the shooter, as a function of the average bullet velocity. The blue line is the erroneous calculation and the red line shows the corrected distance (using 10m correction). Image
Most rifles used by both sides are around the 800 m/s range (after deceleration in air), meaning an increase of ~20 meters, to a range of ~200 meters, which better matches the IDF’s location.
We publish this specific finding ahead of our full analysis as it is widely used in public discourse, causing confusion. However, we generally advise against using a single piece of evidence as a “smoking gun”, since they rarely are (as demonstrated here…).
Only a detailed probabilistic inference, using all evidence, and accounting for all possible sources of error, can provide a reliable assessment of a hypothesis’ likelihood. We’ll be publishing our full analysis soon.

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More from @Rootclaim

Nov 3, 2021
US Intelligence recently released an updated assessment on the origins of COVID-19. It is the same, regular collection of human reasoning failures.
Human reasoning is comfortable with logical true or false assessments, where one statement leads to another. So when a logical claim is made, all that is needed to counter it is a possible alternative explanation, even an unlikely one.
The document is filled with such attempts to assess what’s possible rather than what’s probable: A unique feature like the furin cleavage site *could* occur naturally. A close relative of SARS-CoV-2 *could* be found in the wild.
Read 9 tweets
Jun 18, 2021
Today we announce the resolution of a major controversy: Who was behind the 2013 chemical attack near Damascus?
Many in the West blamed the Syrian government, while Syria and its allies claimed a “false flag” opposition attack, intended to bring about US intervention.
Rootclaim’s 2017 analysis went against this Western consensus, calculating an 87% likelihood that the Syrian opposition carried out the attack. Following the discoveries discussed below this has now been updated to 96%, one of our most certain conclusions.
rootclaim.com/claims/who-car…
Following nearly a year of research, an independent open-source investigation reached a conclusion that corroborates Rootclaim's findings, by uncovering incontrovertible evidence implicating an opposition faction. Full report at
blog.rootclaim.com/syria2013evide…
Read 32 tweets
Sep 25, 2019
1/5
Kudos to @bellingcat for finding two videos of the Syrian M4000 bombs, showing strong similarities to one of the remnants in Khan Sheikhoun.
2/5
As humans often do, @bellingcat focused on how these similarities strengthen their previously held beliefs, while ignoring how they strengthen the competing hypotheses: 1) The opposition has been shown to have multiple M4000 bombs, which they can easily use to fake evidence,
3/5
2) The two videos show a M4000 being used as a non-chemical bomb, weakening the whole original premise of associating M4000 remains with chemical attacks.
Read 5 tweets

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