{"id":53090,"date":"2025-11-22T08:13:51","date_gmt":"2025-11-22T08:13:51","guid":{"rendered":"https:\/\/youzum.net\/the-download-the-secrets-of-vitamin-d-and-an-ai-party-in-africa\/"},"modified":"2025-11-22T08:13:51","modified_gmt":"2025-11-22T08:13:51","slug":"the-download-the-secrets-of-vitamin-d-and-an-ai-party-in-africa","status":"publish","type":"post","link":"https:\/\/youzum.net\/th\/the-download-the-secrets-of-vitamin-d-and-an-ai-party-in-africa\/","title":{"rendered":"The Download: the secrets of vitamin D, and an AI party in Africa"},"content":{"rendered":"

This is today\u2019s edition of\u00a0The Download<\/a><\/em>,\u00a0our weekday newsletter that provides a daily dose of what\u2019s going on in the world of technology.<\/em><\/p>\n

We\u2019re learning more about what vitamin D does to our bodies<\/strong><\/p>\n

At a checkup a few years ago, a doctor told me I was deficient in vitamin D. But he wouldn\u2019t write me a prescription for supplements, simply because, as he put it, everyone in the UK is deficient. Putting the entire population on vitamin D supplements would be too expensive for the country\u2019s national health service, he told me.<\/p>\n

But supplementation\u2014whether covered by a health-care provider or not\u2014can be important. As those of us living in the Northern Hemisphere spend fewer of our waking hours in sunlight, let\u2019s consider the importance of vitamin D. Read the full story<\/a>.<\/p>\n

\u2014Jessica Hamzelou<\/em><\/p>\n

This article first appeared in The Checkup, MIT Technology Review\u2019s weekly biotech newsletter. To receive it in your inbox every Thursday, and read articles like this first, <\/strong>sign up here<\/strong><\/a>.<\/strong><\/p>\n

If you\u2019re interested in other stories from our biotech writers, check out some of their most recent work:<\/strong><\/p>\n

+ Advanced in organs on chips, digital twins, and AI are ushering in a new era of research and drug development that could help put a stop to animal testing. Read the full story<\/a>.<\/p>\n

+ Here\u2019s the latest company planning for gene-edited babies<\/a>.<\/p>\n

+ Preventing the common cold is extremely tricky\u2014but not impossible. Here\u2019s why we don\u2019t have a cold vaccine. Yet<\/a>.<\/p>\n

+ Scientists are creating the beginnings of bodies without sperm or eggs. How far should they be allowed to go? Read the full story<\/a>.<\/p>\n

+ This retina implant lets people with vision loss do a crossword puzzle. Read the full story<\/a>.<\/p>\n\n

Partying at one of Africa\u2019s largest AI gatherings<\/strong><\/p>\n

It\u2019s late August in Rwanda\u2019s capital, Kigali, and people are filling a large hall at one of Africa\u2019s biggest gatherings of minds in AI and machine learning. Deep Learning Indaba is an annual AI conference where Africans present their research and technologies they\u2019ve built, mingling with friends as a giant screen blinks with videos created with generative AI.<\/p>\n

The main \u201cprize\u201d for many attendees is to be hired by a tech company or accepted into a PhD program. But the organizers hope to see more homegrown ventures create opportunities within Africa. Read the full story<\/a>.<\/p>\n

\u2014Abdullahi Tsanni<\/em><\/p>\n

This story is from the <\/strong>latest print issue<\/strong><\/a> of MIT Technology Review magazine, which is full of fascinating stories. If you haven\u2019t already, <\/strong>subscribe now<\/strong><\/a> to receive future issues once they land.<\/strong><\/p>\n\n

The must-reads<\/strong><\/p>\n

I\u2019ve combed the internet to find you today\u2019s most fun\/important\/scary\/fascinating stories about technology.<\/em><\/p>\n

1 Google\u2019s new Nano Banana Pro generates convincing propaganda<\/strong>
The company\u2019s latest image-generating AI model seems to have few guardrails. (The Verge<\/a>)
+ Google wants its creations to be slicker than ever. <\/em>(Wired<\/a> $)
+ Google\u2019s new Gemini 3 \u201cvibe-codes\u201d responses and comes with its own agent. <\/em>(MIT Technology Review<\/a>)<\/p>\n

2 Taiwan says the US won\u2019t punish it with high chip tariffs<\/strong>
In fact, official Wu Cheng-wen says Taiwan will help support the US chip industry in exchange for tariff relief. (FT<\/a> $)<\/p>\n

3 Mental health support is one of the most dangerous uses for chatbots<\/strong>
They fail to recognize psychiatric conditions and can miss critical warning signs. (WP<\/a> $)
+ AI companies have stopped warning you that their chatbots aren\u2019t doctors. <\/em>(MIT Technology Review<\/a>)<\/p>\n

4 It costs an average of $17,121 to deport one person from the US<\/strong>
But in some cases it can cost much, much more. (Bloomberg<\/a> $)
+ Another effort to track ICE raids was just taken offline. <\/em>(MIT Technology Review<\/a>)<\/p>\n

5 Grok is telling users that Elon Musk is the world\u2019s greatest lover<\/strong>
What\u2019s it basing that on, exactly? (Rolling Stone<\/a> $)
+ It also claims he\u2019s fitter than basketball legend LeBron James. Sure. <\/em>(The Guardian<\/a>)

6 Who\u2019s really in charge of US health policy?
<\/strong>RFK Jr. and FDA commissioner Marty Makary are reportedly at odds behind the scenes. (Vox<\/a>)
+ Republicans are lightly pushing back on the CDC\u2019s new stance on vaccines. <\/em>(Politico<\/a>)
+ Why anti-vaxxers are seeking to discredit Danish studies. <\/em>(Bloomberg<\/a> $)
+ Meet Jim O\u2019Neill, the longevity enthusiast who is now RFK Jr.\u2019s right-hand man. <\/em>(MIT Technology Review<\/a>)<\/p>\n

7 Inequality is worsening in San Francisco<\/strong>
As billionaires thrive, hundreds of thousands of others are struggling to get by. (WP<\/a> $)
+ A massive airship has been spotted floating over the city. <\/em>(SF Gate<\/a>)<\/p>\n

8 Donald Trump is thrusting obscure meme-makers into the mainstream
<\/strong>He\u2019s been reposting flattering AI-generated memes by the dozen. (NYT<\/a> $)
+ MAGA YouTube stars are pushing a boom in politically charged ads. <\/em>(Bloomberg<\/a> $)

9 Moss spores survived nine months in space<\/strong>
And they could remain reproductively viable for another 15 years. (New Scientist<\/a> $)
+ It suggests that some life on Earth has evolved to endure space conditions. <\/em>(NBC News<\/a>)
+ The quest to figure out farming on Mars. <\/em>(MIT Technology Review<\/a>)<\/p>\n

10 Does AI really need a physical shape?<\/strong>
It doesn\u2019t really matter\u2014companies are rushing to give it one anyway. (The Atlantic<\/a> $)<\/p>\n\n

Quote of the day<\/strong><\/p>\n

\u201cAt some point you\u2019ve got to wonder whether the bug is a feature.\u201d<\/strong><\/p>\n

\u2014Alexios Mantzarlis, director of the Security, Trust and Safety Initiative at Cornell Tech, ponders xAI and Grok\u2019s proclivity for surfacing Elon Musk-friendly and\/or far-right sources, the Washington Post<\/a> reports.<\/p>\n\n

One more thing<\/strong><\/p>\n

\"\"<\/figure>\n

The AI lab waging a guerrilla war over exploitative AI<\/strong><\/p>\n

Back in 2022, the tech community was buzzing over image-generating AI models, such as Midjourney, Stable Diffusion, and OpenAI\u2019s DALL-E 2, which could follow simple word prompts to depict fantasylands or whimsical chairs made of avocados.<\/p>\n

But artists saw this technological wonder as a new kind of theft. They felt the models were effectively stealing and replacing their work.<\/p>\n

Ben Zhao, a computer security researcher at the University of Chicago, was listening. He and his colleagues have built arguably the most prominent weapons in an artist\u2019s arsenal against nonconsensual AI scraping: two tools called Glaze and Nightshade that add barely perceptible perturbations to an image\u2019s pixels so that machine-learning models cannot read them properly.<\/p>\n

But Zhao sees the tools as part of a battle to slowly tilt the balance of power from large corporations back to individual creators. Read the full story<\/a>.<\/p>\n

\u2014Melissa Heikkil\u00e4<\/em><\/p>\n\n

We can still have nice things<\/strong><\/p>\n

A place for comfort, fun and distraction to brighten up your day. (Got any ideas? <\/em>Drop me a line<\/em><\/a> \u0e2b\u0e23\u0e37\u0e2d <\/em>skeet \u2019em at me<\/em><\/a>.)<\/em><\/p>\n

+ If you\u2019re ever tempted to try and recreate a Jackson Pollock painting<\/a>, maybe you\u2019d be best leaving it to the kids.
+ Scientists have discovered that lions have not one, but two distinct types of roars<\/a> \"\ud83e\udd81\"
+ The relentless rise of the quarter-zip<\/a> must be stopped!
+ Pucker up: here\u2019s a brief history of kissing<\/a> \"\ud83d\udc8b\"<\/p>","protected":false},"excerpt":{"rendered":"

This is today\u2019s edition of\u00a0The Download,\u00a0our weekday newsletter that provides a daily dose of what\u2019s going on in the world of technology. We\u2019re learning more about what vitamin D does to our bodies At a checkup a few years ago, a doctor told me I was deficient in vitamin D. But he wouldn\u2019t write me a prescription for supplements, simply because, as he put it, everyone in the UK is deficient. Putting the entire population on vitamin D supplements would be too expensive for the country\u2019s national health service, he told me. But supplementation\u2014whether covered by a health-care provider or not\u2014can be important. As those of us living in the Northern Hemisphere spend fewer of our waking hours in sunlight, let\u2019s consider the importance of vitamin D. Read the full story. \u2014Jessica Hamzelou This article first appeared in The Checkup, MIT Technology Review\u2019s weekly biotech newsletter. To receive it in your inbox every Thursday, and read articles like this first, sign up here. If you\u2019re interested in other stories from our biotech writers, check out some of their most recent work: + Advanced in organs on chips, digital twins, and AI are ushering in a new era of research and drug development that could help put a stop to animal testing. Read the full story. + Here\u2019s the latest company planning for gene-edited babies. + Preventing the common cold is extremely tricky\u2014but not impossible. Here\u2019s why we don\u2019t have a cold vaccine. Yet. + Scientists are creating the beginnings of bodies without sperm or eggs. How far should they be allowed to go? Read the full story. + This retina implant lets people with vision loss do a crossword puzzle. Read the full story. Partying at one of Africa\u2019s largest AI gatherings It\u2019s late August in Rwanda\u2019s capital, Kigali, and people are filling a large hall at one of Africa\u2019s biggest gatherings of minds in AI and machine learning. Deep Learning Indaba is an annual AI conference where Africans present their research and technologies they\u2019ve built, mingling with friends as a giant screen blinks with videos created with generative AI. The main \u201cprize\u201d for many attendees is to be hired by a tech company or accepted into a PhD program. But the organizers hope to see more homegrown ventures create opportunities within Africa. Read the full story. \u2014Abdullahi Tsanni This story is from the latest print issue of MIT Technology Review magazine, which is full of fascinating stories. If you haven\u2019t already, subscribe now to receive future issues once they land. The must-reads I\u2019ve combed the internet to find you today\u2019s most fun\/important\/scary\/fascinating stories about technology. 1 Google\u2019s new Nano Banana Pro generates convincing propagandaThe company\u2019s latest image-generating AI model seems to have few guardrails. (The Verge)+ Google wants its creations to be slicker than ever. (Wired $)+ Google\u2019s new Gemini 3 \u201cvibe-codes\u201d responses and comes with its own agent. (MIT Technology Review) 2 Taiwan says the US won\u2019t punish it with high chip tariffsIn fact, official Wu Cheng-wen says Taiwan will help support the US chip industry in exchange for tariff relief. (FT $) 3 Mental health support is one of the most dangerous uses for chatbotsThey fail to recognize psychiatric conditions and can miss critical warning signs. (WP $)+ AI companies have stopped warning you that their chatbots aren\u2019t doctors. (MIT Technology Review) 4 It costs an average of $17,121 to deport one person from the USBut in some cases it can cost much, much more. (Bloomberg $)+ Another effort to track ICE raids was just taken offline. (MIT Technology Review) 5 Grok is telling users that Elon Musk is the world\u2019s greatest loverWhat\u2019s it basing that on, exactly? (Rolling Stone $)+ It also claims he\u2019s fitter than basketball legend LeBron James. Sure. (The Guardian)6 Who\u2019s really in charge of US health policy?RFK Jr. and FDA commissioner Marty Makary are reportedly at odds behind the scenes. (Vox)+ Republicans are lightly pushing back on the CDC\u2019s new stance on vaccines. (Politico)+ Why anti-vaxxers are seeking to discredit Danish studies. (Bloomberg $)+ Meet Jim O\u2019Neill, the longevity enthusiast who is now RFK Jr.\u2019s right-hand man. (MIT Technology Review) 7 Inequality is worsening in San FranciscoAs billionaires thrive, hundreds of thousands of others are struggling to get by. (WP $)+ A massive airship has been spotted floating over the city. (SF Gate) 8 Donald Trump is thrusting obscure meme-makers into the mainstreamHe\u2019s been reposting flattering AI-generated memes by the dozen. (NYT $)+ MAGA YouTube stars are pushing a boom in politically charged ads. (Bloomberg $)9 Moss spores survived nine months in spaceAnd they could remain reproductively viable for another 15 years. (New Scientist $)+ It suggests that some life on Earth has evolved to endure space conditions. (NBC News)+ The quest to figure out farming on Mars. (MIT Technology Review) 10 Does AI really need a physical shape?It doesn\u2019t really matter\u2014companies are rushing to give it one anyway. (The Atlantic $) Quote of the day \u201cAt some point you\u2019ve got to wonder whether the bug is a feature.\u201d \u2014Alexios Mantzarlis, director of the Security, Trust and Safety Initiative at Cornell Tech, ponders xAI and Grok\u2019s proclivity for surfacing Elon Musk-friendly and\/or far-right sources, the Washington Post reports. One more thing The AI lab waging a guerrilla war over exploitative AI Back in 2022, the tech community was buzzing over image-generating AI models, such as Midjourney, Stable Diffusion, and OpenAI\u2019s DALL-E 2, which could follow simple word prompts to depict fantasylands or whimsical chairs made of avocados. But artists saw this technological wonder as a new kind of theft. They felt the models were effectively stealing and replacing their work. Ben Zhao, a computer security researcher at the University of Chicago, was listening. He and his colleagues have built arguably the most prominent weapons in an artist\u2019s arsenal against nonconsensual AI scraping: two tools called Glaze and Nightshade that add barely perceptible perturbations to an image\u2019s pixels so that machine-learning models cannot read them properly. But Zhao sees the tools as<\/p>","protected":false},"author":2,"featured_media":53091,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"pmpro_default_level":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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NU","author_link":"https:\/\/youzum.net\/th\/members\/adminnu\/"},"rttpg_comment":0,"rttpg_category":"<a href=\"https:\/\/youzum.net\/th\/category\/ai-club\/\" rel=\"category tag\">AI<\/a> <a href=\"https:\/\/youzum.net\/th\/category\/committee\/\" rel=\"category tag\">Committee<\/a> <a href=\"https:\/\/youzum.net\/th\/category\/news\/\" rel=\"category tag\">News<\/a> <a href=\"https:\/\/youzum.net\/th\/category\/uncategorized\/\" rel=\"category tag\">Uncategorized<\/a>","rttpg_excerpt":"This is today\u2019s edition of\u00a0The Download,\u00a0our weekday newsletter that provides a daily dose of what\u2019s going on in the world of technology. We\u2019re learning more about what vitamin D does to our bodies At a checkup a few years ago, a doctor told me I was deficient in vitamin D. But he wouldn\u2019t write me…","_links":{"self":[{"href":"https:\/\/youzum.net\/th\/wp-json\/wp\/v2\/posts\/53090","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/youzum.net\/th\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/youzum.net\/th\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/youzum.net\/th\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/youzum.net\/th\/wp-json\/wp\/v2\/comments?post=53090"}],"version-history":[{"count":0,"href":"https:\/\/youzum.net\/th\/wp-json\/wp\/v2\/posts\/53090\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/youzum.net\/th\/wp-json\/wp\/v2\/media\/53091"}],"wp:attachment":[{"href":"https:\/\/youzum.net\/th\/wp-json\/wp\/v2\/media?parent=53090"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/youzum.net\/th\/wp-json\/wp\/v2\/categories?post=53090"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/youzum.net\/th\/wp-json\/wp\/v2\/tags?post=53090"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}