This week, we focused on our design principles in our @tag mtgs:

• Fast-evolving crypto algorithms in slower-evolving features
• Using more bikeshed syntax. (Yes, our spec-generating tool is called bikeshed. It matters what shade of blue that is!)

github.com/w3ctag/meetings/blo

This wek’s @tag meetings included:

• WebXR hit testing, so you can cast a ray into the real world & return a list of intersection points for that ray against whatever world understanding the underlying system gathers

github.com/w3ctag/meetings/blo

With apologies — I should have said that this blog post is a joint effort from @markbriers@twitter.com, @cholmesuk@twitter.com and @ChristoPhraser@twitter.com.

RT @hadleybeeman More on the research evaluating the in this blog post from the Turing Institute’s @MarkBriers@twitter.com:

Demonstrating the impact of the NHS COVID-19 app

turing.ac.uk/blog/demonstratin

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For raw data on downloads, contact tracing alerts, QR code posters, venue check-ins, COVID test results linked to the app, etc.

In CSV, published weekly:

faq.covid19.nhs.uk/article/KA-

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More on the research evaluating the in this blog post from the Turing Institute’s @MarkBriers@twitter.com:

Demonstrating the impact of the NHS COVID-19 app

turing.ac.uk/blog/demonstratin

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Paper: The epidemiological impact of the NHS COVID-19 App. 2021. Wymant, Ferretti et al.

"We estimated that for every 1% increase in app users, the number of infections can be reduced by 0.8% (from modelling) or 2.3% (from statistical analysis)."

github.com/BDI-pathogens/covid

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The is now also interoperable — compatible with other contact tracing apps across the UK, protecting users who travel to Scotland, Jersey, Northern Ireland or Gibraltar.

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• The is continually improved; has had a series of updates since its launch in September 2020, including an update to the risk scoring algorithm to utilise Google/Apple's API Mode 2 which better estimates distance based on Bluetooth signal strength.

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• Users have checked into a venue over 103 million times

• 253 venues have been identified ‘at risk’ after an outbreak since 10 Dec, triggering ‘warn & inform’ alerts to app users who had checked into those venues. A ‘w&i’ notification is different to an instruction to isolate

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• The has been downloaded 21.63 million times, representing 56% of the eligible population (age 16+ with a smartphone)

• Research by scientists at @TuringInst & @UniofOxford shows for every 1% ⬆️ in app users, the # of coronavirus cases in the population ⬇️ 2.3%

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New stats on the :

• Approx 600,000 cases have been prevented by the app since Sept
• Over 1.7 million app users across England & Wales have been advised to isolate by the app after close contact with someone who goes on to test positive

gov.uk/government/news/nhs-cov

Starting day 2 of @tag face-to-face, working on expanding the

Ethical Web Principles

w3ctag.github.io/ethical-web-p

with @sundress, @rhiaro, @leaverou@twitter.com and @torgo

Starting day 2 of @tag face-to-face, working on expanding the

Ethical Web Principles github.com/w3ctag/ethical-web-

with @sundress, @rhiaro@toot.com, @LeaVerou@twitter.com and @torgo@pixelfed.social

Starting day 2 of @tag face-to-face, working on expanding the

Ethical Web Principles github.com/w3ctag/ethical-web-

with @sundress, @rhiaro@toot.com, @LeaVerou@twitter.com and @torgo@pixelfed.social

Starting day 2 of @tag face-to-face, working on expanding the

Ethical Web Principles github.com/w3ctag/ethical-web-

with @sundress, @rhiaro@toot.com, @LeaVerou@twitter.com and @torgo@pixelfed.social

Starting day 2 of @tag face-to-face, working on expanding the

Ethical Web Principles github.com/w3ctag/ethical-web-

with @sundress, @rhiaro@toot.com, @LeaVerou@twitter.com and @torgo@pixelfed.social

For those of you clamouring for it, here’s the spec:

WebRTC 1.0: Real-Time Communication Between Browsers

w3.org/TR/webrtc/

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WebRTC is the suite of standards & protocols that make videoconferencing happen smoothly in the browser— no special software needed.

It’s been in many services we all depend on, especially now. And v1.0 is a standard! Congrats to all involved 🎉

RT @w3c@twitter.com The W3C & the IETF are pleased to announce that Web Real-Time Communications (WebRTC) is now an official standard, bringing audio & video communications anywhere on the Web w3.org/2021/01/pressrelease-we

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