How Our Reality May Be a Sum of All Possible Realities
Richard Feynman’s path integral is both a powerful prediction machine and a philosophy about how the world is. But physicists are still struggling to figure out how to use it, and what it means.
Researchers Discover a More Flexible Approach to Machine Learning
“Liquid” neural nets, based on a worm’s nervous system, can transform their underlying algorithms on the fly, giving them unprecedented speed and adaptability.
Mobile Genes From the Mother Shape the Baby’s Microbiome
Tiny genetic sequences in a mother’s bacteria seem to hop into the infant’s bacteria, perhaps ensuring a healthy microbiome later in life.
The Brain Uses Calculus to Control Fast Movements
Researchers discover that to sharpen its control over precise maneuvers, the brain uses comparisons between control signals—not the signals themselves.
Brightest-Ever Space Explosion Reveals Possible Hints of Dark Matter
A recent gamma-ray burst known as the BOAT—“brightest of all time”—appears to have produced a high-energy particle that shouldn’t exist. For some, dark matter provides the explanation.
How Shannon Entropy Imposes Fundamental Limits on Communication
What’s a message, really? Claude Shannon recognized that the elemental ingredient is surprise.
A Numerical Mystery From the 19th Century Finally Gets Solved
Two mathematicians have proven Patterson’s conjecture, which was designed to explain a strange pattern in sums involving prime numbers.
How the Physics of Nothing Underlies Everything
The key to understanding the origin and fate of the universe may be a more complete understanding of the vacuum.