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. [View in browser]( | [Become a member]( EDITORS’ CHOICE Newsletter brought to you by: March 5, 2023   Did a friend forward this? [Subscribe here](. Good Morning! Here’s some of the latest and most popular stories from Nautilus—and this week’s Behind the Scenes with theoretical physicist [Katia Moskvitch]( below [READ NAUTILUS](   [ZOOLOGY]( [What Makes Us Bold]( A parasite infection can make a leader of the pack—or a dead wolf. BY LINA ZELDOVICH Among the forests of Yellowstone National Park, some wolf packs share their territory with cougars. [Continue reading →]( Experience the endless possibilities and deep human connections that science offers [SUBSCRIBE TODAY](   [Best Rewards Card of 2023 With $200 Bonus]( Enjoy exceptional rewards on purchases and [a $200 bonus offer](. A long-time credit card writer says this is one of the best deals he's seen in his years of writing for top financial websites. Start racking up huge rewards. [Learn More Today](   Popular This Week [PHYSICS]( [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. BY CHARLIE WOOD [Continue reading →]( [MICROBIOLOGY]( [The Body Electric]( We are formed by more than DNA. Meet the bioelectric code. BY SALLY ADEE [Continue reading →]( [GEOSCIENCE]( [The Moon Smells Like Gunpowder]( Why dirt on the moon (and Mars) would be dangerous to live with. BY JILLIAN SCUDDER [Continue reading →]( [HEALTH]( [Is This New Swim Stroke the Fastest Yet?]( The surprising performance and physics of the fish kick. BY REGAN PENALUNA [Continue reading →](   [BEHIND THE SCENES]( [Katia Moskvitch Takes Us Behind “Giant Zombie Atoms of the Cosmos”]( The author of Neutron Stars: The Quest to Understand the Zombies of the Cosmos talked about an inspiring letter her high-school self received from an astronaut; the strange matter at the core of neutron stars; doing something James Bond couldn’t; and more. INTERVIEW BY BRIAN GALLAGHER [Watch the conversation→](   [“It turns any intermediate host into a bold risk-taker.”]( [Lina Zeldovich reports on a parasite that makes wolves bolder—and humans more entrepreneurial.](   More in Zoology [The Vanishing Animals of Hispaniola]( An inside look at efforts to save rare and endangered species in the Dominican Republic. BY TAMARA MARIA BLAZQUEZ HAIK [Continue reading →]( [It’s a Family Affair]( A new film dives into the intricate lives of giant sperm whales. BY MARY ELLEN HANNIBAL [Continue reading →](   P.S. A Florida man was killed by the rare, [brain-eating amoeba]( Naegleria fowleri, arguably an [emerging parasite]( which will see its range spread further as a result of climate change. In “Parasites Are Us,” the psychologist Robert Levine tells an unexpected but fascinating story about a biologist who grew to care for a botfly that grew on his head. Such parasitic invaders, Levine reminds us, [challenge our idea of self and other.](   Today’s newsletter was written by Brian Gallagher   BECOME A SUBSCRIBER [The Most Awe-Inspiring Stories in Science]( [Nautilus]( is a different kind of science magazine. Science is brought to life through narrative storytelling, taking you into the depths of science to highlight today's most vital conversations. Enjoy the wonder and awe of science, distilled into captivating reads. [Subscribe to Nautilus Print + Digital]( today for only $89/year and save 50% annually. [Join Now](   [Facebook]( [Twitter]( [Instagram]( Copyright © 2023 NautilusNext, All rights reserved. You were subscribed to the newsletter from nautil.us. Our mailing address is: NautilusNext 360 W 36th Street, 7S, New York, NY 10018 Don't want to hear from us anymore? Click here to [unsubscribe](.