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Plants may not be getting enough credit. Not only do they remember when you touch them, it turns out that they can make risky decisions that are as sophisticated as those made by humans, all without brains or complex nervous systems. And they may even judge risks more efficiently than we do.

Researchers showed that when faced with the choice between a pot containing constant levels of nutrients or one with unpredictable levels, a plant will pick the mystery pot when conditions are sufficiently poor.

When nutrient levels were low, the plants laid more roots in the unpredictable pot. But when nutrients were abundant, they chose the one that always had the same amount. The plants somehow knew the best time to take risks.

You can easily imagine what Dostoevsky would make of modern sociology, psychology, advertising techniques, war games, polling of any sort. What’s wrong with such techniques, in both their cynical or ameliorative uses, was simply stated by Sartre, in 1945: “All materialist philosophies create man as an object, a stone.” The underground man says that, on the contrary, human beings are unfathomable, unknowable.

Predictors of human behavior, as the underground man says, generally assume we will act in our own best interests. But do we? The same question might be asked today, when “rational-choice theory” is still a predictive model for economists and sociologists and many others. When working-class whites vote for Republican policies that will further reduce their economic power—are they voting in their best interests? What about wealthy liberals in favor of higher taxes on the rich? Do people making terrible life choices—say, poor women having children with unreliable men—act in their best interests? Do they calculate at all? What if our own interest, as we construe it, consists of refusing what others want of us? That motive can’t be measured. It can’t even be known, except by novelists like Dostoevsky. Reason is only one part of our temperament, the underground man says. Individualism as a value includes the right to screw yourself up.

Rep. Joaquin Castro (D-Texas) and Sen.-designate Alex Padilla (D-Calif.) are pushing for undocumented essential workers on the front lines of the coronavirus pandemic to be fast-tracked for U.S. citizenship. 

Padilla’s own parents came to the U.S. from Mexico in the 1960s and worked in restaurants and house cleaning.  

“These are people who feed us, clean our homes and hospitals and offices… and they do all this while living in fear of deportation, exploitation and now of this pandemic,”

Sigmund Freud and Carl Jung put forth some of the most widely-known modern theories of dreaming. Freud’s theory centred around the notion of repressed longing -- the idea that dreaming allows us to sort through unresolved, repressed wishes. Carl Jung (who studied under Freud) also believed that dreams had psychological importance, but proposed different theories about their meaning.

One prominent neurobiological theory of dreaming is the “activation-synthesis hypothesis,” which states that dreams don’t actually mean anything: they are merely electrical brain impulses that pull random thoughts and imagery from our memories. Humans, the theory goes, construct dream stories after they wake up, in a natural attempt to make sense of it all.

the “threat simulation theory” suggests that dreaming should be seen as an ancient biological defence mechanism that provided an evolutionary advantage because of  its capacity to repeatedly simulate potential threatening events – enhancing the neuro-cognitive mechanisms required for efficient threat perception and avoidance.

North Korean leader Kim Jong Un is calling for beefing up his country's nuclear and military capabilities, but appears to be leaving open the possibility for negotiation with the U.S., just days before President-elect Joe Biden takes office.

he also affirmed previous agreements with the Trump administration, which suggests that they could serve as the basis for future negotiations

That declaration called for denuclearization and a peace regime on the Korean peninsula, and a new, presumably less hostile, relationship between Pyongyang and Washington.

After more than 60 years of research into child language development, the mechanism that enables children to segment syllables and words out of the strings of sounds they hear, and to acquire grammar to understand and produce language is still quite an enigma.

Skinner argued that children learn language based on behaviorist reinforcement principles by associating words with meanings.

children will never acquire the tools needed for processing an infinite number of sentences if the language acquisition mechanism was dependent on language input alone.

President Joe Biden also said in an address on Thursday that all Americans would be eligible for a COVID-19 vaccine by May 1

Now, this does not necessarily mean everyone in the country will be rolling up their sleeves on that day. The general public may start scheduling appointments in early May, but it’s probably going to take a few months to work through the general population.

So far, the vaccine rollout has been sticky — it’s difficult to secure an appointment and supply continues to be tight across the country.

Why ask “Why trust science?” When many people worry about the safety of genetically modified food, parents resist the advice of pediatricians to vaccinate their children against common childhood diseases, religious people still say they take the earth to be fewer than 10,000 years old, and the president of the United States declares climate change to be a hoax perpetrated by the Chinese, public trust in scientific research would seem to be in dire straits. The time is ripe for reassurance. Even to pose the question indicates that something has gone wrong.

We need to know why to trust science, then, in part because we need to know why to believe the scientific consensus on climate change, and Naomi Oreskes is the obvious person to provide the answer. Her new book takes up the question explicitly; it grows out of her Tanner Lectures on Human Values, delivered at Princeton in late 2016, and includes commentaries by a historian, a philosopher, and three social scientists.

WASHINGTON — America’s greenhouse gas emissions from energy and industry plummeted more than 10 percent in 2020, reaching their lowest levels in at least three decades as the coronavirus pandemic slammed the brakes on the nation’s economy, according to an estimate published Tuesday by the Rhodium Group.

Before the pandemic hit, America’s emissions had been slowly but steadily declining since 2005, in large part because utilities that generate electricity have been shifting away from coal, the dirtiest fossil fuel, in favor of cheaper and cleaner natural gas, wind and solar power. Over the past decade, utilities have retired hundreds of coal-burning power plants despite President Trump’s efforts to revive the industry.

“Nothing short of a total transformation of our energy infrastructure will be required,” said Fatih Birol, the agency’s executive director. “That calls for decisive action this year, next year and indeed every year to 2050.”

Obama gives readers more than a mere recitation of events. He offers an insider’s peek into his thought process

Obama’s well-earned reputation as someone who could overthink almost anything is one reason fellow writers, especially in the media, found him so fascinating

Trump’s supporters found his “honesty” refreshing, by which they meant, he’s saying what I’m thinking, no matter how ignoble my thoughts.

Washington (CNN Business)Twitter will now apply warning labels to — and cease recommending — claims that outside experts have identified as misinformation during fast-moving times of crisis, the social media company said Thursday.

The platform's new crisis misinformation policy is designed to slow the spread of viral falsehoods during natural disasters, armed conflict and public health emergencies, the company announced.

"To determine whether claims are misleading, we require verification from multiple credible, publicly available sources, including evidence from conflict monitoring groups, humanitarian organizations, open-source investigators, journalists, and more," Twitter's head of safety and integrity, Yoel Roth, wrote in a blog post.

This can be fixed using potentially unbreakable quantum key distribution (QKD). In QKD, information about the key is sent via photons that have been randomly polarized. This restricts the photon so that it vibrates in only one plane—for example, up and down, or left to right. The recipient can use polarized filters to decipher the key and then use a chosen algorithm to securely encrypt a message. The secret data still gets

sent over normal communication channels, but no one can decode the message unless they have the exact quantum key. That's tricky, because quantum rules dictate that "reading" the polarized photons will always change their states, and any attempt at eavesdropping will alert the communicators to a security breach.

But it is not just conservatives who question scientific authority in the United States. Alarm at many applications of biological research, for example, crosses party lines. This impulse usually targets genetic engineering and biotechnology, but it also fosters skepticism toward vaccination and other medical practices. Across the political spectrum, citizens tend to pick and choose among scientific theories and applications based on preexisting commitments. They are frequently suspicious of basic research procedures as well; many believe that peer review and other internal policing mechanisms fail to remove powerful biases. Conservatives often charge that peer review enforces liberal groupthink, while some progressives say it leaves conventional social norms unexamined.

Even as individuals, scientists face growing skepticism. Concern about scientific misconduct is widespread, and most Americans doubt that the perpetrators face serious repercussions. Significant numbers trust the experts who apply knowledge more than those who produce it.