Paul-Olivier Dehaye Profile picture
Founder @PersonalDataIO @HestiaLabs, polytropon thinking about maths, data, science, ethics, collective intelligence and cognition.
May 25, 2022 15 tweets 5 min read
As #CPDP2022 was about to start, I visited the conference location to try to better understand how Google (and others!) might be tracking participants

As an "aside", Google is a Platinum sponsor at the conference



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So, let's dig in! The day before, May 20th, I went near the venue with Semantic Location History activated. That gives me a glimpse at the infrastructure of surveillance Google is leveraging.

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May 1, 2021 11 tweets 4 min read
"important contribution", read the article or follow the thread below... 1/n

👇 This table is from the paper. "Ratio of persons with + test result after app notification per all SARS-CoV-2 positive cases" ranges from 0.6% to 1.8% in Zurich and 0.2% (!) to 0.6% in Switzerland as a whole, during various periods including the beginning of the 2nd wave. 2/n
Dec 31, 2020 21 tweets 10 min read
In 2007, I participated in an Oxford vaccine trial. This was the 1st time chimpanzee adenoviruses were tested on humans. I was the second to be injected w/ this stuff.

The Oxford/AstraZeneca COVID vaccine is directly based on that tech, with tremendous hope beyond COVID

👇 2007 was a touchy time to participate in a vaccine trial. The year before a trial for Theralizumab had resulted in 6 volunteers out of 8 suffering a cytokine storm. One of the 6 lost toes and fingers. The last two? They had only received placebos!

en.wikipedia.org/wiki/Theralizu…
Sep 4, 2020 9 tweets 5 min read
This work really makes a plethora of basic mistakes.

I will point at some below. 1/ Think SwissCovid leads to many calls to the hotline? That's good, right?

Well, you better know what those calls are for. Building a GAEN app is like building on the quicksand of the OS you are using.

Case in point, Apple:
Mar 13, 2020 13 tweets 3 min read
When Cummings sent his job ad, I wrote a thread on how revealing it was of his world view, and particularly that he would name check a journalist like @carolecadwalla
Indeed, Cummings understands the systemic level very well. But as I said then, he fails to understand how others build meaning and why that is important.
Jan 3, 2020 7 tweets 3 min read
@carolecadwalla The fact that Cummings felt compelled to refer to you in this job ad is actually hugely relevant. He understands the systemic level very well, but fails at understanding how others make sense of the systemic, and why that is important. @carolecadwalla He also fails to understand there is circularity in the particular context of elections (i.e. process of how the average p makes sense of what's best, given tons of influence). That circularity gives more legitimacy to your stories than his calculations as a way to build meaning
Jan 25, 2019 21 tweets 9 min read
There is ABSOLUTELY a story here, documenting Facebook's resistance to the "Download your History" feature (yet their use of this White Whale for PR purposes right now, even yesterday at Davos by Sandberg) 1/n This is not a frivolous request. The reason to ask is that this feature would make a lot of v interesting research much easier and potent (+granular, personal feedback). E.g. this research on Twitter would transfer over completely
Sep 28, 2018 12 tweets 2 min read
The FB press release on the data breach discloses enough to conclude it was way more devastating than reported. It makes two partial disclosures: one on quality of the hack (how well did hackers control a hacked account), one on quantity (how many accounts hacked at that level). The quality of the hack is extremely high: if you fully own an account, you could (through "View As") fully control the account of any of their friends as well (by pretending to be them). One could use this to hop towards high value targets, from friend to friend.