James' World 2

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You know how your heart melts whenever a pup raises its eyebrows? That’s no accident. While research on non-human animals has long suggested that facial expressions are involuntary, it turns out dogs may be different, and like humans, able to control their facial expressions to get what they want. Are you really surprised?

In a 2017 study published in the journal Scientific Reports, researchers tested whether dogs illustrated the “audience effect.” They found that dogs reacted with more noticeable facial expressions when humans were around than when there were no humans around, suggesting that dogs use facial expressions to voluntarily communicate.

A team of researchers at the University of Portsmouth Dog Cognition Centre devised an experiment to investigate whether dogs’ facial expressions are subject to audience effects, which simply means that they wanted to see whether dogs made different faces when they thought they weren’t being watched. This would suggest that they’re voluntarily controlling their facial expressions, changing what we know about animal behavior.

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AfterAfter years of positive vibes about the future of autonomous vehicles and nearly unrestricted access to cash from Kool-Aid-drunk venture capitalists, the AV industry is confronting some hard truths. The first is that autonomous vehicles are going to take a lot longer to reach mass scale than previously thought. The second is that it’s going to be a lot more expensive, too. And the third hard truth: going it alone is no longer a viable option.

Last week, Lyft sold its self-driving car division to a subsidiary of Toyota for $550 million. Cruise bought Voyage. Aurora merged with Uber’s autonomous vehicle unit. Delivery robot startup Nuro acquired self-driving truck outfit Ike. There have been so many mergers, joint ventures, and various tie-ups lately it can be difficult to keep them all straight.

Where that leaves things is a little unclear. There is still money flowing to these companies, and nearly all of the executives, engineers, and software developers working on the technology remain bullish about the future. But there is a growing sense among experts and investors that the heady days when anyone with a couple of test vehicles, some LIDAR, and a vision for the future could launch a startup are at an end. And there will definitely be more shrinkage to come.

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Photo Illustration by Grayson Blackmon / The Verge

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They say that in art, constraints lead to creativity. The same seems to be true of the universe. By placing limits on nature, the laws of physics squeeze out reality’s most fantastical creations. Limit light’s speed, and suddenly space can shrink, time can slow. Limit the ability to divide energy into infinitely small units, and the full weirdness of quantum mechanics blossoms. “Declaring something impossible leads to more things being possible,” writes the physicist Chiara Marletto. “Bizarre as it may seem, it is commonplace in quantum physics.”

Marletto grew up in Turin, in northern Italy, and studied physical engineering and theoretical physics before completing her doctorate at the University of Oxford, where she became interested in quantum information and theoretical biology. But her life changed when she attended a talk by David Deutsch, another Oxford physicist and a pioneer in the field of quantum computation. It was about what he claimed was a radical new theory of explanations. It was called constructor theory, and according to Deutsch, it would serve as a kind of meta-theory more fundamental than even our most foundational physics — deeper than general relativity, subtler than quantum mechanics. To call it ambitious would be a massive understatement.

Marletto, then 22, was hooked. In 2011, she joined forces with Deutsch, and together they have spent the last decade transforming constructor theory into a full-fledged research program.

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Philipp Ammon for Quanta Magazine

Constructor theory grew out of work in quantum information theory. It aims to be broad enough to cover areas that can’t be described in the traditional ways of thinking, such as the physics of life and the physics of information.

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If you bike down a street on the edge of Los Angeles’s Echo Park neighborhood, you’ll see a sudden change in the pavement on one block, where the black asphalt shifts to white. A little over a year ago, the city covered the street with a special coating—light in color, so it reflects the sun—as part of a plan to help cool L.A. as the world keeps getting hotter.

Like most cities, L.A. is facing more frequent and extreme heatwaves. One new study that mapped out rising heat across the country found that if greenhouse gas emissions continue on their current path, the average number of days in a year across the U.S. that feel hotter than 100 degrees will more than double by the middle of the century. Some cities will have it worst: In Miami, by the end of the century, 153 days each year could feel that hot. Globally, cities that were relatively cool in the past are beginning to grapple with buildings that weren’t built for heat (like Berlin, where the average high in June is 72 degrees but climbed to 101 degrees one day last month, the hottest on record for the planet). Cities also suffer from the urban heat island effect: Hot temperatures get even hotter as pavement and buildings soak up and release radiation from the sun.

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Photo by borchee/Getty Images 

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