Posts Tagged ‘Santa Fe Institute’
“Everywhere is walking distance if you have the time”*…
Sara Walker and Lee Cronin suggest that time is not a backdrop, nor an illusion, nor an emergent phenomenon; rather, they suggest in an essay from The Santa Fe Institute, it has a physical size that can be measured in laboratories……
A timeless universe is hard to imagine, but not because time is a technically complex or philosophically elusive concept. There is a more structural reason: imagining timelessness requires time to pass. Even when you try to imagine its absence, you sense it moving as your thoughts shift, your heart pumps blood to your brain, and images, sounds and smells move around you. The thing that is time never seems to stop. You may even feel woven into its ever-moving fabric as you experience the Universe coming together and apart. But is that how time really works?
According to Albert Einstein, our experience of the past, present and future is nothing more than ‘a stubbornly persistent illusion’. According to Isaac Newton, time is nothing more than backdrop, outside of life. And according to the laws of thermodynamics, time is nothing more than entropy and heat. In the history of modern physics, there has never been a widely accepted theory in which a moving, directional sense of time is fundamental. Many of our most basic descriptions of nature – from the laws of movement to the properties of molecules and matter – seem to exist in a universe where time doesn’t really pass. However, recent research across a variety of fields suggests that the movement of time might be more important than most physicists had once assumed.
A new form of physics called assembly theory suggests that a moving, directional sense of time is real and fundamental. It suggests that the complex objects in our Universe that have been made by life, including microbes, computers and cities, do not exist outside of time: they are impossible without the movement of time. From this perspective, the passing of time is not only intrinsic to the evolution of life or our experience of the Universe. It is also the ever-moving material fabric of the Universe itself. Time is an object. It has a physical size, like space. And it can be measured at a molecular level in laboratories.
The unification of time and space radically changed the trajectory of physics in the 20th century. It opened new possibilities for how we think about reality. What could the unification of time and matter do in our century? What happens when time is an object?…
Find out at: “Time is an object,” by @Sara_Imari and @leecronin, from @sfiscience in @aeonmag.
Apposite: “The New Thermodynamic Understanding of Clocks.”
* Steven Wright
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As we contemplate chronology, we might recall that it was on this date in 1947 that the Doomsday Clock appeared for the first time (as the fourth quadrant of a clock face with its hands at 7 minutes to midnight) as the background image on the cover of the June issue of the Bulletin of the Atomic Scientists. From then to the present, the Doomsday Clock image has been on the cover of the Bulletin, though the hands over the years have been shown moving forward or back to convey how close humanity is to catastrophic destruction (midnight).
The clock currently stands at 90 seconds to midnight.
[HBD, GC(S)]
“Fools ignore complexity. Pragmatists suffer it… Geniuses remove it.”*…
World War II bomber planes returned from their missions riddled with bullet holes. The first response was, not surprisingly, to add armor to those areas most heavily damaged. However, the statistician Abraham Wald made what seemed like the counterintuitive recommendation to add armor to those parts with no damage. Wald had uniquely understood that the planes that had been shot where no bullet holes were seen were the planes that never made it back. That’s, of course, where the real problem was. Armor was added to the seemingly undamaged places, and losses decreased dramatically.
The visible bullet holes of this pandemic are the virus and its transmission. Understandably, a near-universal response to the COVID-19 pandemic has been to double down on those disciplines where we already possess deep and powerful knowledge: immunology and epidemiology. Massive resources have been directed at combating the virus by providing fast grants for disciplinary work on vaccines. Federal agencies have called for even more rapid response from the scientific community. This is a natural reaction to the immediate short-term crisis.
The damage we are not attending to is the deeper nature of the crisis—the collapse of multiple coupled complex systems.
Societies the world over are experiencing what might be called the first complexity crisis in history. We should not have been surprised that a random mutation of a virus in a far-off city in China could lead in just a few short months to the crash of financial markets worldwide, the end of football in Spain, a shortage of flour in the United Kingdom, the bankruptcy of Hertz and Niemann-Marcus in the United States, the collapse of travel, and to so much more.
As scientists who study complex systems, we conceive of a complexity crisis as a twofold event. First, it is the failure of multiple coupled systems—our physical bodies, cities, societies, economies, and ecosystems. Second, it involves solutions, such as social distancing, that involve unavoidable tradeoffs, some of which amplify the primary failures. In other words, the way we respond to failing systems can accelerate their decline.
We and our colleagues in the Santa Fe Institute Transmission Project believe there are some non-obvious insights and solutions to this crisis that can be gleaned from studying complex systems and their universal properties…
The more complicated and efficient a system gets, the more likely it is to collapse altogether. Scientists who study complex systems offer solutions to the pandemic: “The Damage We’re Not Attending To.”
See also: “Complex Systems Theory Explains Why Covid Crushed the World.”
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As we think systemically, we might recall that it was on this date in 1835 that the New York Sun began a series of six articles detailing the discovery of civilized life on the moon. Now known as “The Great Moon Hoax,” the articles attributed the “discovery” to Sir John Herschel, the greatest living astronmer of the day. Herschel was initially amused, wryly noting that his own real observations could never be as exciting. But ultimately he tired of having to answer questioners who believed the story. The series was not discovered to be a hoax for several weeks after its publication and, even then, the newspaper did not issue a retraction.
The “ruby amphitheater” on the Moon, per the New York Sun (source)
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