Intelligence on Earth Evolved Independently at Least Twice

“How we end up with similar circuitry was more flexible than I would have expected,” Zaremba said. “You can build the same circuits from different cell types.” Zaremba and her team also found that in the bird pallium, neurons that start development in different regions can mature into the same type of neuron in the … Read more

Scientists Are Mapping the Boundaries of What Is Knowable and Unknowable

Moore designed his pinball machine to complete the analogy to the Turing machine. The starting position of the pinball represents the data on the tape being fed into the Turing machine. Crucially (and unrealistically), the player must be able to adjust the ball’s starting location with infinite precision, meaning that specifying the ball’s location requires … Read more

This New Algorithm for Sorting Books or Files Is Close to Perfection

The original version of this story appeared in Quanta Magazine. Computer scientists often deal with abstract problems that are hard to comprehend, but an exciting new algorithm matters to anyone who owns books and at least one shelf. The algorithm addresses something called the library sorting problem (more formally, the “list labeling” problem). The challenge … Read more

New Superconductive Materials Have Just Been Discovered

The original version of this story appeared in Quanta Magazine. In 2024, superconductivity—the flow of electric current with zero resistance—was discovered in three distinct materials. Two instances stretch the textbook understanding of the phenomenon. The third shreds it completely. “It’s an extremely unusual form of superconductivity that a lot of people would have said is … Read more