Doug Johnson in Undark:

In a recent paper, scientists including Danial Khojasteh, a hydrodynamics expert at the University of New South Wales in Australia, show how sea level rise could upend the viability of tidal energy in sites around the world, turning presently prime spots into duds.

Khojasteh and his colleagues came to this conclusion after modeling 978 different hypothetical estuaries with varying shapes, tidal ranges, and rates of sea level rise, among other factors. While none of the estuaries were based on real locations, they could “reasonably represent the geometries of many, many estuaries worldwide,” says Khojasteh.

More here.

Two poems of Walt Whitman

O Living Always, Always Dying

O living always, always dying!
O the burials of me past and present,
O me while I stride ahead, material, visible, imperious as ever;
O me, what I was for years, now dead (I lament not, I am
…… content);
O to disengage myself from those corpses of me, which I turn
…… and look at where I cast them,
To pass on (O living! Always living!) and leave the corpses behind.

What Am I After All

What am I after all but a child, pleas’d with the sound of my
…… own name? repeating it over and over;
I stand apart to hear—it never tires me.

To you your name also;
Did you think there was nothing but two or three pronuncia-
…… tions in the sound of your name?

Charles Foster in The Guardian:

Elon Musk has offered a prize of $100m for the best carbon capture and sequestration proposal. I can save his committee a lot of time. The money should go to Peter Wohlleben, the German forester whose book The Hidden Life of Trees was the most improbable and encouraging blockbuster of 2015. Wohlleben’s idea is this: leave forests alone. Stop fiddling with them, thinking that we can deal with climate change better than nature. If we fiddle, our Romes will burn.

The Hidden Life argued that trees are social and sensate. The Power of Trees shows that they can be our saviours. But it’s terribly hard to let ourselves be saved. We think we can be the authors of our salvation. We are doers by constitution. Of course, there are things we could and should be doing, but in terms of forestry practice, often what’s billed as part of the solution is part of the problem.

More here.

Sarah Scoles in Scientific American:

In the movies, time travelers typically step inside a machine and—poof—disappear. They then reappear instantaneously among cowboys, knights or dinosaurs. What these films show is basically time teleportation.

Scientists don’t think this conception is likely in the real world, but they also don’t relegate time travel to the crackpot realm. In fact, the laws of physics might allow chronological hopping, but the devil is in the details. Time traveling to the near future is easy: you’re doing it right now at a rate of one second per second, and physicists say that rate can change. According to Einstein’s special theory of relativity, time’s flow depends on how fast you’re moving. The quicker you travel, the slower seconds pass. And according to Einstein’s general theory of relativity, gravity also affects clocks: the more forceful the gravity nearby, the slower time goes.

More here.

Lawrence Weschler at Wondercabinet:

I won’t go into the history of the tiling problem here—Roberts does her typically clear, concise, and beguiling job in the article in question, well supplemented by an equally captivating account offered by longtime friend of the Cabinet, Margaret Wertheim, in a recent issue of her new substack Science Goddess, which you can find here. I love it that when it came to a breakthrough that had eluded the likes of the eminent Nobel laureate Roger Penrose (Stephen Hawking’s mentor!), who’d gotten stuck several years back one step shy of this ultimate solution, the fellow who turned out to make the decisive leap proved to be a modest, self-effacing cypher and complete nonprofessional outsider by the (near-perfectly anonymous) name of David Smith, who’d then had to seek out a small band of intrepid professionals to frame the discovery in terms a peer-reviewed journal would countenance (at first none of them could quite believe the development either). But that’s how it sometimes (even if almost never) happens. So do yourselves a favor and bone up on the particulars of this magical discovery on your own.

more here.

Kirsten Tambling at Literary Review:

In 1611, the Somerset-born traveller Thomas Coryat described an Italian architectural novelty: a ‘very pleasant little tarrasse, that jutteth or butteth out from the maine building: the edge whereof is decked with many pretty little turned pillers … to leane over’. England’s introduction to the balcony came over a decade after the first performance of William Shakespeare’s tragedy Romeo and Juliet. When it was staged in the summer of 1596, just before London’s playhouses were closed owing to a resurgence of plague, the exchange now universally known as the ‘balcony scene’ was probably transacted at a window opening onto the backstage ‘tiring house’ of the Shoreditch Theatre. The popular image of Juliet as a bright-eyed teenager in white muslin leaning over a balustrade only began to form a century and a half later, when a balcony first appeared as part of the stage set. By the late 1930s, the museum director Antonio Avena had improvised a ‘tarrasse’ from a marble sarcophagus and retrofitted it to the walls of Via Cappello 23 – putative home of the ‘historical’ Capulets in Verona. Visitors now pose on ‘Juliet’s balcony’ as part of an international pilgrimage that also includes visiting a bronze statue of Shakespeare’s heroine and rubbing her right breast for luck.

more here.

Lucy Knight in The Guardian:

The novelist and screenwriter Hanif Kureishi is to publish a memoir about the accident that left him paralysed last year, expanding on the brutally honest material the author has been sharing on social media and online platform Substack, which he continues to dictate from an Italian hospital.

On Boxing Day 2022, the author of The Buddha of Suburbia was rushed to intensive care after a fall in Rome. He later tweeted, via dictation to family, that he may never be able to walk or use a pen again.

“I cannot scratch my nose, make a phone call or feed myself,” he wrote.

Since then his blogposts, The Kureishi Chronicles, and his tweets have shared insights on everything from his health to his recreational drug use. A recent post told of a visit from his schoolfriend David, whom Kureishi revealed he had fancied in his youth.

More here.

Jake Buehler in Science News:

Shimmering, gelatinous comb jellies wouldn’t appear to have much to hide. But their mostly see-through bodies cloak a nervous system unlike that of any other known animal, researchers report in the April 21 Science.

In the nervous systems of everything from anemones to aardvarks, electrical impulses pass between nerve cells, allowing for signals to move from one cell to the next. But the ctenophores’ cobweb of neurons, called a nerve net, is missing these distinct connection spots, or synapses. Instead, the nerve net is fused together, with long, stringy neurons sharing a cell membrane, a new 3-D map of its structure shows.

More here.

Alan Levinovitz in The Hedgehog Review:

Screentime limits. Dinner table lockboxes. Minimalist devices. There’s no shortage of creative fixes for our broken relationship to smartphones. Consumption is the enemy, restriction is the solution, and new habits are the promised result. The goal? A more productive life, free from useless scrolling and hollow social media.

Unfortunately, this approach has serious drawbacks. Like a traditional diet, it requires endless vigilance and it pathologizes the target of restriction. More importantly, the goal reinforces the same values that tether us to our phones in the first place: productivity and utility.

As a professor of classical Chinese thought who has struggled with my devices, I follow a different approach inspired by Confucianism and Daoism.

More here.

Schuyler Velasco at Northeastern Global News:

The researchers then observed how the birds used that newfound ability over a three-month period. They wondered: If given the choice, would the birds call each other?

The answer, relayed in delighted squawks and head bobs, was a resounding yes. “Some strong social dynamics started appearing,” Kleinberger says.

Not only did the birds initiate calls freely and seem to understand that a real fellow parrot was on the other end, but caretakers overwhelmingly reported the calls as positive experiences for their parrots. Some caregivers watched their birds learn skills from their video friends, including foraging, new vocalizations and even flying. “She came alive during the calls,” reported one. A few significant findings emerged. The birds engaged in most calls for the maximum allowed time.

more here.

Praise of Learning

Learn the simplest things. For you
whose time has already come
it is never too late!
Learn you’re A B C’s, it is not enough,
but learn them! Do not let it discourage you,
begin! You must know everything!
You must take over the leadership!

Learn, man in the asylum!
Learn, man in prison!
Learn, wife in the kitchen!
Learn, man of sixty!
Seek out the school, you who are homeless!
Sharpen your wits, you who shiver!
Hungry man, reach for the book: it is a weapon.
You must take over the leadership.

Don’t be afraid of asking, brother!
Don’t be won over,
see for yourself!
What you don’t know yourself,
you don’t know.
Add up the reckoning.
It’s you who must pay it.
Put you finger on each item,
ask: how did this get here?
You must take over the leadership.

by Bertolt Brecht
from Collected Poems- Bertolt Brecht
Grove Press, 1947

Diana Kwon in Nautilus:

Jane McKeating never expected time to matter much in the liver.

About a decade ago, McKeating was examining medications to use during liver transplantation in patients with chronic hepatitis C infections. Hepatitis C can linger in the body for decades and cause severe liver damage—and in those days, the lack of drugs to combat the viral infection meant that when a patient received a replacement liver, the virus could immediately infect the new organ. McKeating, then a virologist at the University of Birmingham in the United Kingdom, and her colleagues wanted to see whether an antiviral drug could stop the virus’ spread and save the new livers.

When the team initially assessed their data, they were stumped. It looked like the drug prevented infection in some patients, but not others—and it wasn’t clear what, exactly, was behind this difference. “We just couldn’t understand what was discriminating between the patients,” says McKeatin, now at the University of Oxford. After much head scratching, they noticed a perplexing pattern: Patients who received their liver transplants in the morning were more likely to be reinfected with the hepatitis C virus than those who had their operations in the afternoon.¹ “It turned out it was the time of day when they received the liver transplant,” she says.

More here.

https://www.youtube.com/watch?v=tCTRZDs4Evg

Forget ‘I think therefore I am’. In a new theory of embodied consciousness, the neuroscientists Antonio Damasio and Hanna Damasio propose that feelings are the source of consciousness. Long dismissed as secondary to reason, feelings are where consciousness begins. Without them, consciousness is impossible, they argue – with radical implications for the ‘hard problem’ of consciousness and the future of AI.

Antonio Damasio and Hanna Damasio at IAI News:

Please pause for a moment and notice what you are feeling now. Perhaps you notice a growing snarl of hunger in your stomach or a hum of stress in your chest. Perhaps you have a feeling of ease and expansiveness, or the tingling anticipation of a pleasure soon to come. Or perhaps you simply have a sense that you exist. Hunger and thirst, pain, pleasure and distress, along with the unadorned but relentless feelings of existence, are all examples of ‘homeostatic feelings’. Homeostatic feelings are, we argue here, the source of consciousness.

More here.

Kevin Hartnett in Quanta:

It’s not an exaggeration to say that every major advance in physics for more than a century has turned on revelations about symmetry. It’s there at the dawn of general relativity, in the birth of the Standard Model, in the hunt for the Higgs.

For that reason, research across physics is now building to a crescendo. It was touched off by a 2014 paper, “Generalized Global Symmetries,” which demonstrated that the most important symmetries of 20th-century physics could be extended more broadly to apply in quantum field theory, the basic theoretical framework in which physicists work today.

This reformulation, which crystallized earlier work in the area, revealed that disparate observations physicists had made in the past 40 years were really manifestations of the same lurking symmetry. In doing so, it created an organizing principle that physicists could use to categorize and understand phenomena. “That’s really a stroke of genius,” said Nathaniel Craig, a physicist at the University of California, Santa Barbara.

More here.

Ellen O’Brien in the Sydney Review of Books:

When I’m driving my car, I feel like I’m in my own private domicile, bitch! I’m the driver, so I’m in control: I choose the music, the temperature level, how fast or slow we go. I also suffer the consequences, but that’s fine—it’s my life! And yes, there are things I should consider—agreements between us, called ‘road rules’ and ‘traffic laws’—but if I disregard them, I can pretend that I’m the queen of my own little castle. So, vroom fucking vroom, baby! Let’s ride.

More here.

Noah Smith in Noahpinion:

Imagine if you went outside and saw that it had started to rain, and that people on the street were opening their umbrellas. And imagine that you ran around waving your arms and saying “Stop! Stop! Umbrellas make rain worse!!” People would think you were a silly person, and rightly so.

But why don’t people think that umbrellas make rain worse? After all, everyone knows that rain typically starts to intensify shortly after people start opening their umbrellas. But we have a good causal theory of why rain happens, and we know that umbrellas have nothing to do with it; we know that the umbrellas are a response to the problem, rather than the cause.

The same should be true for market-rate housing construction and rising rents.

More here.