Discover and read the best of Twitter Threads about #complexity

Most recents (24)

Thanks ICP for publishing this essay on #Ritamic Decision Policy. Into year-3 of this series, this post summarizes manthan, research and study of the Vedic origins of sustainable decision policy and strategy, with contemporary examples all can relate to.
Post focuses on sustainable policy to make not one, but a series of interconnected decisions over time.

Can ideas of Vedanta be applied here?
short ans: Y.

Content is of interest to those making gov or private policy, designers, startups, #Ganita/stem students, young parents.
The post is divided into 7 sections with links to each at the top. Those who simply want a easy-to-remember idea of Ritamic decision policy can go to the examples- read how Air India altered its DEL-SFO route in harmony with Ritam. flightradar24.com/blog/wp-conten…
Read 38 tweets
🧵 "#Criticality: A Balance Between #Robustness and #Adaptability"

Today's SFI Seminar by @cgershen @cgg_mx:
Image
Regarding systems at the #EdgeOfChaos
Identifying #PhaseTransition dynamics
Citing @WagnerEvolution on #Robustness
Contrasting it with #Chaos (fragile, hard to predict, etc.)
And then #Criticality, somewhere in the middle... ImageImageImageImage
With #criticality, due to #PowerLaw(-like) distributions:

"Most of the changes will be small, but for some, you can have large changes."

See also #fractals

Key history point: Stuart Kauffman's #random #Boolean #networks (1969!)

Updated by @cgershen in 2004 ImageImageImageImage
Read 12 tweets
She Said: The origin story of the #MeToo campaign 🙄🙄, or a version of it wsws.org/en/articles/20…
"She Said is a bland, stilted work largely without genuine dramatic life or energy. No element of ambiguity or complexity is allowed to intrude. Whatever conceptions and prejudices the viewer enters with, he or she leaves with."
Yes: I agree that both #ambiguity and #complexity are needed for intelligent art. Also, it is only intelligent art which can examine, and possibly change, people's prejudices. Not propaganda for cancel culture or whatever. 😏
Read 14 tweets
"Fabricating #Clay: #Machines, #Materials, & #Code"

🧵 Today's SFI Seminar by @leahbuechley (@UNM):
"We build the geometry directly by thinking about the PATH that our 3D printer takes. There's no intermediate slicing software [to render CAD as "2D" layers]."

- @leahbuechley, #3DPrinting clay with a 1.5 mm nozzle
"You can start to think about surface textures - like spikes that you can't do with a traditional slicer. Or...here's a path that's a sine wave, but every other layer is rotated. Or...one creature is following THIS path, and the other is chasing it around."

#clay #3dprinting
Read 11 tweets
"#Emergence, #SelfOrganization, & #Complexity"

🧵 In today's SFI Seminar, Visiting Scholar @cgershen presents the second in his series of talks on core concepts in #ComplexSystems science, streaming now:

"In high school #physics class you are taught that with the initial conditions of a system, you can predict its future states. In #complexity, this is not so...it means #reductionism is not appropriate, #Platonism is not appropriate..."
- @cgershen
"You can see a layer of circuits computing something. What is it computing? Itself. In a 248x248 array, you can program the #GameOfLife inside the game of life. Computers allow us to explore #Complexity, and it's no surprise complexity became a science in the 1980s."
- @cgershen
Read 7 tweets
🧀
Okay. So I haven't slept for 2 days, I'm running on Adderall, Coffee and Cheeeeeescake, Gromit.

Now that I set the stage, I need to document some stuff here before I crash. Because: I'm seeing things 'from my archives matching realtime' that I need to save before, 'smoked'. Image
Awhile back...

...I did a thing on top of a lot of other things and then more things since those things.

What FOLLOWS is a #MindDump jumbled out-of-sequence set of affinities around 'a Theme'

THEME : '#Memeplex and #Q' Image
Dan killed his 'name' account (Known-Known) and created a completely new one (Identical User ID).

It hasn't changed, externally, from immediately after it was created. '3/0' Zero Tweets. Behind the curtain? Who knows. Image
Read 112 tweets
NEW DOMAIN found - CREATED July 2022.

It currently Re-Directs to THIS page.

I DISCOVERED it while digging through 4chan network, NOT this one around since 2013

One I found is 'between WATKINS and RUSSIA'.

OWNER: REDACTED

Next: Network Image
Created July 8, 2022

Owner: REDACTED

Timing: DISCONCERTING Image
26ch

0 BACKLINKS
13 LINKS

NO MUSIC LINKS Image
Read 54 tweets
So.

I haven't made it past pg.8 of Professor @laura_greenaura's just-released paper on #QAnon because 'stuff'...

...prompts my index-finger to the TrackPad and Zzzzap⚡️!

🧑‍🔧 The Mechanic finds a broken 'cog' in a 'gear' in the 'Transmission Assembly'

MIA > '@LumpyNewsCom' Image
LumpyNews dot Com...

(I am going somewhere with this...) Image
'Ripple Financial' Re-Directs to 'Lumpy'...

(stay with me here...) Image
Read 28 tweets
I promise a thread 🧵when the paper gets accepted. It's about the thermodynamics of traffic flow near the critical density.

Next up is to show that the entropy of an urban network is the travel time!
1/n

The paper below by @jianxi_gao @LouisShekhtman and others reveals macroscopic emergent behavior in the Beijing urban network consistent with self-organized criticality. This changes everything.

pnas.org/doi/10.1073/pn…
Read 21 tweets
Can computational methods assess the #sentiment of complex texts? In an article with my fabulous colleagues from the @WZB_Berlin, @unipotsdam @LMU_Muenchen @JungeAkademie, we answer this question by applying #dictionary and #scaling methods on a sample of #literature reviews🧵
The article is also a practical #guide to help researchers select an appropriate #method and degree of preprocessing for their own data. Our #corpus consisted of 6.041 summaries of reviews of contemporary German #literature acquired from @perlentaucher00 (2/9)
The linguistic #complexity of #literature reviews differ from other texts with regard to their #language-- ambiguity, irony, metaphors, etc.-- are comparatively difficult to capture with #computational approaches. So how did our different methods fare? (3/9)
Read 9 tweets
Can one combine agent-based modelling (ABM) with qualitative comparative analysis (QCA)? For the past few days, we’ve attempted such a mixing of methods. Three teams worked on different prototypes @lorentzcenter. A thread about some of our findings. 👇 #complexity
Why combine QCA & ABM? QCA shows configurations of conditions that co-occur with an outcome (i.e., is case-based) but not the mechanisms that drive the outcome. QCA is also (mostly) static. ABM is dynamic, highlights the mechanisms but misses the configurational, case-based bit.
The two main challenges: (1) QCA runs on a set-theoretical approach to causality; ABM runs on vector causality. (2) QCA reconstructs what has happened; ABM simulates what could happen given a set of assumptions. There are technical challenges, too, of course.
Read 13 tweets
Finally, the #GoldacreReview is published! (During Parliamentary Easter holidays, mid-ping-pong on the #HealthAndCareBill...)

It's 221 pages - each PDF page is a double page spread - so this could be a lo-o-o-ong [Thread].

Here goes...
First point to note, in the Terms of Reference (p5), is that this is about "access to #NHSdata by #researchers, #commissioners, and #innovators" - i.e. #Planning and #CommercialReUse - so it is directly relevant to the operation of millions of people's #NationalDataOptOuts... Terms of reference for the review  1. How do we facilitate a
"185 wide-ranging recommendations for us to explore", says @sajidjavid (p6). Gulp! Time for some coffee...

"systems that ensure #underrepresented groups are well represented" may (partly) refer to this "landmark review", which got off to a slow start:

gov.uk/government/new… The far-reaching independent review into potential ethnic bi
Read 159 tweets
Daily Bookmarks to GAVNet 02/19/2022 greeneracresvaluenetwork.wordpress.com/2022/02/19/dai…
How is the “Purcell principle” threatening voting rights in America? | The Economist
economist.com/the-economist-…
#PurcellPrinciple, #VotingRights, #USA
Read 13 tweets
Recommendable: healthwyze.org/political-vide…("Another sign of the system being totally corrupted is their #SmartBoards which are replacing blackboards in every room. Along with most other so-called "smart" technologies, it is really a device intended more to dumb-down the users,
>
>or to at least insult their intelligence. These devices cost roughly $5,000 per unit, and require an additional recent..#computer to drive them. Therefore, when the cost of one of these is added to the cost of its driving computer, plus the #cost of setup,
>
>plus the cost of all of the required software, plus the cost of training, then the price is certainly over $10,000 per classroom (and likely closer to $20,000 per room). This would place the cost for each upgrade at well over a million dollars per school every couple of years.
>
Read 6 tweets
Some people do bad things, but, they don't look bad.
They are others who do good, but, they don't look good.
It's how we are intrinsically made, that shapes our personality, defines our intentions and describes our actions.
Our #DNA is the repository that informs our evolution.
Ask the maker why he made it?
Not from the doer.
We human beings are at the receiving end, always!!
We are what we are!
We all are made according to a certain specification list.
If we try to mutate ourselves forcefully too much, we won't remain what we are.
Be #Adaptative without violating the complex laws of nature.
Read 6 tweets
A select case of #Evolution and #Leftist Progression in the History of Economic Thought ->
From #Marxism to #Keynesian Economics to #MMT
#Complexity
Negative events will lead to negative outcomes :
#Bolshevik Revolution => #Intenational #Proletarianism & #Leninism
#Great #Depression -> #Keynesian Economics
#Chinese Cultural Revolution -> Gang of Four
#GFC -> Modern Monetary Theory #MMT
That is how to interpret history.
Anticipating #tippingpoint is the most essential thing a gifted leader has to his credit.
All non-linear events should be studied carefully by applying #physics in social sciences, such as #Chaos #Theory and Law of #Thermodynamics.
Yes, and #Murphy's #First Law might also help.
Read 6 tweets
"Americans increased the Defence Budget to the tune of USD 200 Billion per year between 1980 and 1987"
#MacNamara.
One must learn Crisis Management from Military leaders and Geostrategic Affairs Experts.
Leadership, management and entrepreneurship can all benefit from wargaming and decision-making did on the battlefield.
An interdisciplinary approach to problem-solving helps a lot!
#MacNamara is right about three things when he sums up a crisis situation
1. Misinformation exacerbates a crisis
2. Emotionalism can ruin strategic decision-making
3. First information received in the event of a crisis is always wrong leading to an error of judgement
Read 9 tweets
Daily Bookmarks to GAVNet 12/04/2021 greeneracresvaluenetwork.wordpress.com/2021/12/04/dai…
A 45-year-old man declared 'dead' was found alive after 7 hours in a morgue freezer, reports say

usatoday.com/story/news/wor…

#StrangerThanFiction
Magnetizable Concrete in Roads Could Charge Electric Cars While You Drive

singularityhub.com/2021/08/09/mag…

#ElectricVehicles #BatteryCharging #MagnetizableConcrete
Read 13 tweets
Daily Bookmarks to GAVNet 11/25/2021 greeneracresvaluenetwork.wordpress.com/2021/11/25/dai…
Millions of crabs shut down the streets on Australia's Christmas Island

usatoday.com/story/news/wor…

#RedCrabs #australia #ChristmasIsland
The impact of flowering plants on the evolution of life on Earth

phys.org/news/2021-11-i…

#evolution #FloweringPlants #impact #ResearchResults
Read 10 tweets

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