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picasso pith
when art critics get together, they talk about form structure and meaning. when artists get together, they talk about where you can buy cheap turpentine
More Emails to the World
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from "echo chambers" to "echo platforms"
We have gone from "echo chambers" to "echo platforms"
Users migrate between platforms in search of environments better suited to their preferences
A new paper analyzes 117 million posts related to the 2020 US Presidential elections from nine social media platforms—Facebook, Reddit, Twitter, YouTube, BitChute, Gab, Parler, Scored, and Voat.
The findings reveal significant differences among platforms in the reliability of circulated news, and the ideological diversity of their users, highlighting a clear divide between mainstream and alt-tech platforms. The latter occupy a peripheral role, feature a higher prevalence of unreliable content, and exhibit greater ideological uniformity.
Read the paper here: https://academic.oup.com/pnasnexus/article/4/9/pgaf262/8232781?login=false
Users migrate between platforms in search of environments better suited to their preferences
A new paper analyzes 117 million posts related to the 2020 US Presidential elections from nine social media platforms—Facebook, Reddit, Twitter, YouTube, BitChute, Gab, Parler, Scored, and Voat.
The findings reveal significant differences among platforms in the reliability of circulated news, and the ideological diversity of their users, highlighting a clear divide between mainstream and alt-tech platforms. The latter occupy a peripheral role, feature a higher prevalence of unreliable content, and exhibit greater ideological uniformity.
Read the paper here: https://academic.oup.com/pnasnexus/article/4/9/pgaf262/8232781?login=false
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m vs rn
sneaky scammers! careful out there
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10,000 Pitches Competition - Select the winner!
The 10,000 Pitches Competition is bringing forward bold, innovative ideas from U-M students, faculty, staff, and alumni. Now, we’re asking the community to help select the winners.
Explore the gallery of pitches, vote for the ones that inspire you most, and support U-M innovators making an impact.
Vote now through Oct 6: https://myumi.ch/D87x7
Explore the gallery of pitches, vote for the ones that inspire you most, and support U-M innovators making an impact.
Vote now through Oct 6: https://myumi.ch/D87x7
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potential bio-signatures for ancient life on Mars!
In more uplifting news, NASA's Perseverance rover has found "leopard spots", potential bio-signatures for ancient life on Mars.
"....the instruments found a distinct pattern of minerals arranged into reaction fronts (points of contact where chemical and physical reactions occur) the team called leopard spots. The spots carried the signature of two iron-rich minerals: vivianite (hydrated iron phosphate) and greigite (iron sulfide). Vivianite is frequently found on Earth in sediments, peat bogs, and around decaying organic matter. Similarly, certain forms of microbial life on Earth can produce greigite.
The combination of these minerals, which appear to have formed by electron-transfer reactions between the sediment and organic matter, is a potential fingerprint for microbial life, which would use these reactions to produce energy for growth. The minerals also can be generated abiotically, or without the presence of life. Hence, there are ways to produce them without biological reactions, including sustained high temperatures, acidic conditions, and binding by organic compounds. However, the rocks at Bright Angel do not show evidence that they experienced high temperatures or acidic conditions, and it is unknown whether the organic compounds present would’ve been capable of catalyzing the reaction at low temperatures.
The discovery was particularly surprising because it involves some of the youngest sedimentary rocks the mission has investigated. An earlier hypothesis assumed signs of ancient life would be confined to older rock formations. This finding suggests that Mars could have been habitable for a longer period or later in the planet’s history than previously thought, and that older rocks also might hold signs of life that are simply harder to detect."
NASA link：
https://lnkd.in/d4DSTxxu
Nature paper：
https://lnkd.in/d2XeQbRH
"....the instruments found a distinct pattern of minerals arranged into reaction fronts (points of contact where chemical and physical reactions occur) the team called leopard spots. The spots carried the signature of two iron-rich minerals: vivianite (hydrated iron phosphate) and greigite (iron sulfide). Vivianite is frequently found on Earth in sediments, peat bogs, and around decaying organic matter. Similarly, certain forms of microbial life on Earth can produce greigite.
The combination of these minerals, which appear to have formed by electron-transfer reactions between the sediment and organic matter, is a potential fingerprint for microbial life, which would use these reactions to produce energy for growth. The minerals also can be generated abiotically, or without the presence of life. Hence, there are ways to produce them without biological reactions, including sustained high temperatures, acidic conditions, and binding by organic compounds. However, the rocks at Bright Angel do not show evidence that they experienced high temperatures or acidic conditions, and it is unknown whether the organic compounds present would’ve been capable of catalyzing the reaction at low temperatures.
The discovery was particularly surprising because it involves some of the youngest sedimentary rocks the mission has investigated. An earlier hypothesis assumed signs of ancient life would be confined to older rock formations. This finding suggests that Mars could have been habitable for a longer period or later in the planet’s history than previously thought, and that older rocks also might hold signs of life that are simply harder to detect."
NASA link：
https://lnkd.in/d4DSTxxu
Nature paper：
https://lnkd.in/d2XeQbRH
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insta and 5; zzzbig new code - first test
big new code build - post has three small images
express, not stress