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Sean Carroll
@seanmcarroll
, 4 tweets, 2 min read Read on Twitter
Episode 31: Brian Greene @bgreene on the Multiverse, Inflation, and the String Theory Landscape. #MindscapePodcast
preposterousuniverse.com/podcast/2019/0…
Direct link to audio player: traffic.libsyn.com/seancarroll/br…
Any conversation with Brian is self-recommending. Remember that the post in the link above includes a full transcript of the episode, generously paid for by Patreon supporters.
Arrgh, sorry the intro only comes out of one speaker again. This is what you get when your vast production team consists of only yourself. But I'll fix it and hopefully the new file will propagate out into the streams.
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Sean Carroll
@seanmcarroll
A new study in @nature shows that small scientific teams are more likely to be truly disruptive than large collaborations. It's great work, but has engendered a "shift funding to smaller science" narrative that I think is a bit off the mark.
nature.com/articles/s4158…
For one thing, I would bet that papers with fewer authors are also more likely to be ignored and get zero citations than those from big collaborations. There's just more variance in the world of papers with one or two authors.
More importantly, this paragraph in @edyong209's writeup of the story kind of undoes the narrative entirely. The causal factor doesn't seem to be size of the collaboration, it's receiving funding from top agencies! theatlantic.com/science/archiv…
Read 5 tweets
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Sean Carroll
@seanmcarroll
Hey we have a book cover. Soon there will be an Amazon page. By September there will actually be a book you can buy! #somethingdeeply
Most of Something Deeply Hidden is about quantum mechanics generally, and Many-Worlds in particular. But the last section uses these ideas in the context of quantum gravity. Thus "Emergence of Spacetime" in the subtitle. #somethingdeeply
Quantum gravity was a big original motivation for Hugh Everett to develop the Many-Worlds approach. When there aren't observers, it's hard to make sense of the Copenhagen interpretation.
Read 4 tweets
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Sean Carroll
@seanmcarroll
A good overview of the status of inflationary cosmology in the wake of the @Planck satellite observations, by Chowdhury, Martin, Ringeval, and Vennin. I do have one nontrivial objection... 1/n
arxiv.org/abs/1902.03951
They discuss whether early inhomogeneities could prevent inflation, and conclude that the issue is open. It's not! It's perfectly clear that most inhomogeneous initial conditions, by any sensible measure, do not lead to inflation. 2/n
There are many arguments for this, the simplest of which is that you wouldn't expect a collapsing universe to anti-inflate. It's a reflection of the fact that the early universe had low entropy, which is automatically "unlikely". 3/n
Read 5 tweets

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Matthew Willemsen
@mwill_crypto
0/ Hot start to the week in the #crypto/#blockchain ecosystem! Successful fundraising rounds. New records set. Several products launched. Below is a 34-part thread on events that took place between Monday and Tuesday.

Enjoy!
1/ 🆕 @Guesserio launches today! Built on @AugurProject [ $REP ], the California-based #crypto project promises their release “will fundamentally change the way you participate in Augur prediction markets.”

Invest in the outcome of real-world events at your fingertips!
2/ 🔧 #Ethereum- and #IPFS-powered #blockchain platform for decentralized marketplaces, @OriginProtocol, unveiled its 'Marketplace Creator' tool.

This allows users to construct a decentralized marketplace in just a matter of minutes! medium.com/originprotocol…
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Podosfera Antifascista! ✊🚩🏴
@Podosfera
Para cada like neste tweet, um podcast brasileiro nesta #PodcastFriday 🎧.

#OuçaMaisPodcasts 🎙 #podcastbr 🇧🇷
Podcasts sobre o cotidiano (Semana dos 10) e temas específicos (10deCast) com aquela dose certa de bobagem. 10de10.com.br/podcasts #OuçaMaisPodcasts 🎙 #podcastbr 🇧🇷 #PodcastFriday 🎧 @10de10 @mtesperon
37 Graus é um podcast com estilo audiodocumentário que conta histórias reais, com um pé na ciência. 37grauspodcast.com
#OuçaMaisPodcasts 🎙 #podcastbr 🇧🇷 #PodcastFriday 🎧. @37podcast
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Elisabeth Bik
@MicrobiomDigest
Today, I am watching Episode 5 of the #Interconnected #microbiome series, called "Leaky gut - leaky brain - leaky kids".
interconnectedseries.com/episode5syo
Note: link will be disappear after 24h; after that you will have to pay.
My tweets will stay and are free!
The first part of the episode is mainly about the gut-brain connection. The main message is that you need to eat good food (fiber, vegetables) to send good signals to your brain. This is good information that can help many people.
But the summary of the first part, as given by the presenter on this slide, has some errors that should have been edited out.
1. "Enteroception" appears to be a vague term that only occurs 3 times in Pubmed, so there is no widespread scientific support for it.
Read 38 tweets
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Palmer Report
@PalmerReport
Snopes has "fact checked" the claims of voter suppression against Brian Kemp in Georgia, and has determined that the claims against Kemp are only partly true, based on – get this – taking his word for it. No, really...
This happens ALL THE TIME these days. Snopes underwent a shift in ownership a few years ago, along with a major swap out of its staff, and transformed into a clickbait factory using dishonest "fact checks" to chase traffic, while skating by on prior reputation...
I first sounded the alarm in early 2016 about Snopes resorting to dishonest antics. Snopes then retaliated with a long series of dishonest "fact checks" about my work. Snopes writers also personally attacked me in numerous media interviews. My reputation took a bit hit over it...
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Hatut Zeraze #LongLiveKingTChalla #WakandaForever
@charleshb
The concepts of doing well by doing good, impact investment funds & the like substitute "generosity" for "justice". Justice often requires the powerful to lose something, to stop standing on someone's back. 1/x
Generosity in this context is like continuing to stand on someone's back while throwing them a bone. Generosity of this kind where the system doesn't change but scraps are thrown has become a very powerful idea. 2/x
paraphrased from a conversation between @AnandWrites & @deray on he Pod Save (@PodSaveThePpl) the People #podcast crooked.com/podcast/never-… #economics #politics #business #philanthropy 3/3
Read 15 tweets
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Sébastien Carassou 🌎
@FlashCordon
Bon allez je me lance.
1 RT = 1 podcast pour alimenter tes neurones pendant les vacances !! (En français ou en anglais)
La méthode scientifique (@lamethodeFC), ou l'actualité des sciences traitée avec soin et humour ! franceculture.fr/emissions/la-m…
Podcast science (@podcastscience) : de la science en format long, et des dossiers thématiques aux petits oignons ! podcastscience.fm
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