Our Big Bang, our distant future, parallel worlds, the sub-atomic and intergalactic - none of them are what they seem. But there is a way to understand this immense strangeness - mathematics. Seeking an answer to the fundamental puzzle of why our universe seems so mathematical, Tegmark proposes a radical idea: that our physical world not only is described by mathematics, but that it is mathematics. This may offer answers to our deepest questions: How large is reality? What is everything made of? Why is our universe the way it is?Table of ContentsPreface 1 What Is Reality? Not What It Seems • What’s the Ultimate Question? • The Journey Begins Part One: Zooming Out 2 Our Place in Space Cosmic Questions • How Big Is Space? • The Size of Earth • Distance to the Moon • Distance to the Sun and the Planets • Distance to the Stars • Distance to the Galaxies • What Is Space? 3 Our Place in TimeWhere Did Our Solar System Come From? • Where Did theGalaxies Come From? • Where Did the Mysterious MicrowavesCome From? • Where Did the Atoms Come From? 4 Our Universe by NumbersWanted: Precision Cosmology • Precision Microwave-Background Fluctuations • Precision Galaxy Clustering • The Ultimate Map of Our Universe • Where Did Our Big Bang Come From? 5 Our Cosmic Origins What’s Wrong with Our Big Bang? • How Inflation Works • The Gift That Keeps on Giving • Eternal Inflation 6 Welcome to the Multiverse The Level I Multiverse • The Level II Multiverse • Multiverse Halftime Roundup Part Two: Zooming In 7 Cosmic Legos Atomic Legos • Nuclear Legos • Particle-Physics Legos • Mathematical Legos • Photon Legos • Above the Law? • Quanta and Rainbows • Making Waves • Quantum Weirdness • The Collapse of Consensus • The Weirdness Can’t Be Confined • Quantum Confusion 8 The Level III Multiverse The Level III Multiverse • The Illusion of Randomness • Quantum Censorship • The Joys of Getting Scooped • Why Your Brain Isn’t a Quantum Computer • Subject, Object and Environment • Quantum Suicide • Quantum Immortality? • Multiverses Unified • Shifting Views: Many Worlds or Many Words? Part Three: Stepping Back 9 Internal Reality, External Reality and Consensus Reality External Reality and Internal Reality • The Truth, the Whole Truth and Nothing but the Truth • Consensus Reality • Physics: Linking External to Consensus Reality 10 Physical Reality and Mathematical Reality Math, Math Everywhere! • The Mathematical Universe Hypothesis • What Is a Mathematical Structure? 11 Is Time an Illusion? How Can Physical Reality Be Mathematical? • What Are You? • Where Are You? (And What Do You Perceive?) • When Are You? 12 The Level IV Multiverse Why I Believe in the Level IV Multiverse • Exploring the Level IV Multiverse: What’s Out There? • Implications of the Level IV Multiverse • Are We Living in a Simulation? • Relation Between the MUH, the Level IV Multiverse and Other Hypotheses •Testing the Level IV Multiverse 13 Life, Our Universe and Everything How Big Is Our Physical Reality? • The Future of Physics • The Future of Our Universe—How Will It End? • The Future of Life •The Future of You—Are You Insignificant? Acknowledgments Suggestions for Further Reading Index

    Set in Edwardian London and on the stormy coasts of Cornwall, Cape Cod, and Nova Scotia, Thunderstruck evokes the dynamism of those years when great shipping companies competed to build the biggest, fastest ocean liners, scientific advances dazzled the public with visions of a world transformed, and the rich outdid one another with ostentatious displays of wealth. Against this background, Marconi races against incredible odds and relentless skepticism to perfect his invention: the wireless, a prime catalyst for the emergence of the world we know today. Meanwhile, Crippen, “the kindest of men,” nearly commits the perfect crime. With his superb narrative skills, Erik Larson guides these parallel narratives toward a relentlessly suspenseful meeting on the waters of the North Atlantic. Along the way, he tells of a sad and tragic love affair that was described on the front pages of newspapers around the world, a chief inspector who found himself strangely sympathetic to the killer and his lover, and a driven and compelling inventor who transformed the way we communicate. Thunderstruck presents a vibrant portrait of an era of séances, science, and fog, inhabited by inventors, magicians, and Scotland Yard detectives, all presided over by the amiable and fun-loving Edward VII as the world slid inevitably toward the first great war of the twentieth century. Gripping from the first page, and rich with fascinating detail about the time, the people, and the new inventions that connect and divide us, Thunderstruck is splendid narrative history from a master of the form.

    Four days later, the B-17 assigned to the search-and-rescue mission became lost in a blinding storm and also crashed. Miraculously, all nine men on board survived, and the US military launched a daring rescue operation. But after picking up one man, the Grumman Duck amphibious plane flew into a severe storm and vanished.Frozen in Time tells the story of these crashes and the fate of the survivors, bringing vividly to life their battle to endure 148 days of the brutal Arctic winter, until an expedition headed by famed Arctic explorer Bernt Balchen brought them to safety. Mitchell Zuckoff takes the reader deep into the most hostile environment on earth, through hurricane-force winds, vicious blizzards, and subzero temperatures.Moving forward to today, he recounts the efforts of the Coast Guard and North South Polar Inc. – led by indefatigable dreamer Lou Sapienza – who worked for years to solve the mystery of the Duck’s last flight and recover the remains of its crew.A breathtaking blend of mystery and adventure Mitchell Zuckoff's Frozen in Time: An Epic Story of Survival and a Modern Quest for Lost Heroes of World War II is also a poignant reminder of the sacrifices of our military personnel and a tribute to the everyday heroism of the US Coast Guard.

    The disaster not only changed the world’s perception of nuclear power and the science that spawned it, but also our understanding of the planet’s delicate ecology. With the images of the abandoned homes and playgrounds beyond the barbed wire of the 30-kilometer Exclusion Zone, the rusting graveyards of contaminated trucks and helicopters, the farmland lashed with black rain, the event fixed for all time the notion of radiation as an invisible killer.Chernobyl was also a key event in the destruction of the Soviet Union, and, with it, the United States’ victory in the Cold War. For Moscow, it was a political and financial catastrophe as much as an environmental and scientific one. With a total cost of 18 billion rubles—at the time equivalent to $18 billion—Chernobyl bankrupted an already teetering economy and revealed to its population a state built upon a pillar of lies. The full story of the events that started that night in the control room of Reactor No.4 of the V.I. Lenin Nuclear Power Plant has never been told—until now. Through two decades of reporting, new archival information, and firsthand interviews with witnesses, journalist Adam Higginbotham tells the full dramatic story, including Alexander Akimov and Anatoli Dyatlov, who represented the best and worst of Soviet life; denizens of a vanished world of secret policemen, internal passports, food lines, and heroic self-sacrifice for the Motherland. Midnight in Chernobyl, award-worthy nonfiction that reads like sci-fi, shows not only the final epic struggle of a dying empire but also the story of individual heroism and desperate, ingenious technical improvisation joining forces against a new kind of enemy.

    Tens of millions of people over several states are affected. For those without access to a generator, there is no running water, no sewage, no refrigeration or light. Food and medical supplies are dwindling. Devices we rely on have gone dark. Banks no longer function, looting is widespread, and law and order are being tested as never before.  It isn’t just a scenario. A well-designed attack on just one of the nation’s three electric power grids could cripple much of our infrastructure—and in the age of cyberwarfare, a laptop has become the only necessary weapon. Several nations hostile to the United States could launch such an assault at any time. In fact, as a former chief scientist of the NSA reveals, China and Russia have already penetrated the grid. And a cybersecurity advisor to President Obama believes that independent actors—from “hacktivists” to terrorists—have the capability as well. “It’s not a question of if,” says Centcom Commander General Lloyd Austin, “it’s a question of when.”  And yet, as Koppel makes clear, the federal government, while well prepared for natural disasters, has no plan for the aftermath of an attack on the power grid.  The current Secretary of Homeland Security suggests keeping a battery-powered radio.In the absence of a government plan, some individuals and communities have taken matters into their own hands. Among the nation’s estimated three million “preppers,” we meet one whose doomsday retreat includes a newly excavated three-acre lake, stocked with fish, and a Wyoming homesteader so self-sufficient that he crafted the thousands of adobe bricks in his house by hand. We also see the unrivaled disaster preparedness of the Mormon church, with its enormous storehouses, high-tech dairies, orchards, and proprietary trucking company – the fruits of a long tradition of anticipating the worst. But how, Koppel asks, will ordinary civilians survive?With urgency and authority, one of our most renowned journalists examines a threat unique to our time and evaluates potential ways to prepare for a catastrophe that is all but inevitable.

    What the nation’s leaders are really like and what goes on behind the scenes remains hidden. Secret Service agents have a front row seat on their private lives and those of their wives and children.    Crammed with new, headline-making revelations, THE FIRST FAMILY DETAIL: Secret Service Agents Reveal the Hidden Lives of the Presidents by Ronald Kessler tells that eye-opening, uncensored story.   Since publication of his New York Times bestselling book In the President’s Secret Service, award-winning investigative reporter Ronald Kessler has continued to penetrate the wall of secrecy that surrounds the U.S. Secret Service, breaking the story that Secret Service agents who were to protect President Obama hired prostitutes in Cartagena, Colombia and revealing that the Secret Service allowed a third uninvited guest to crash a White House state dinner.   Now Kessler presents far bigger and more consequential stories about our nation’s leaders and the agency sworn to protect them. Kessler widens his scope to include presidential candidates, former presidents after they leave the White House, and the presidents’ relationships to their first ladies and children.   From observing Vice President Joe Biden’s reckless behavior that jeopardizes the country’s safety, to escorting Bill Clinton’s mistress at Chappaqua, to overhearing First Lady Michelle Obama’s admonitions to the president, to witnessing President Nixon’s friends bring him a nude stripper, to seeing their own agency take risks that could result in an assassination, Secret Service agents know a secret world that Ronald Kessler exposes in breathtaking detail.  THE FIRST FAMILY DETAIL reveals: · Vice President Joe Biden regularly orders the Secret Service to keep his military aide with the nuclear football a mile behind his motorcade, potentially leaving the country unable to retaliate in the event of a nuclear attack. · Secret Service agents discovered that former president Bill Clinton has a blond mistress. Within minutes of Hillary Clinton’s leaving, the woman—codenamed Energizer by agents—shows up to be with Bill every day while the likely future presidential candidate is away. · The Secret Service covered up the fact that President Ronald Reagan’s White House staff overruled the Secret Service to let unscreened spectators get close to Reagan as he left the Washington Hilton, allowing him to be shot by John W. Hinckley Jr.   · Secret Service agents have been dismayed to overhear Michelle Obama push her husband to be more aggressive in attacking Republicans and to side with blacks in racial controversies.  · Secret Service Director Mark Sullivan diverted agents from protecting President Obama and his family at the White House and ordered them instead to protect his assistant at her home and illegally retrieve confidential records as a favor to her.   · Because Hillary Clinton is so nasty to agents, being assigned to her protective detail is considered a form of punishment and the worst assignment in the Secret Service.   · Secret Service agents were ordered to ignore security rules and allow the SUV carrying actor Bradley Cooper to drive unscreened into a secure restricted area when President Obama was about to deliver his speech at the White House Correspondents Dinner.   · Vice President Joe Biden spends millions of taxpayer dollars flying to and from his home in Delaware on Air Force Two. His office tried to cover up the costs of the personal trips.  · Because the Secret Service refused to provide enough magnetometers at his campaign events, Mitt Romney regularly left himself open to assassination by giving speeches to unscreened crowds.   · Vice President Joe Biden swims nude at the vice president’s residence in Washington and at his home in Delaware, offending female agents.

       Devotion tells the inspirational story of the U.S. Navy’s most famous aviator duo: Lieutenant Tom Hudner, a white New Englander from the country-club scene, and Ensign Jesse Brown, an African American sharecropper’s son from Mississippi. Tom passed up Harvard to fly fighter planes for his country. Jesse became the navy’s first black carrier pilot to defend a nation that wouldn’t even serve him in a bar.   While much of America remained divided by segregation, Jesse and Tom joined forces as wingmen in Fighter Squadron 32. Adam Makos takes us into the cockpit as these bold young aviators cut their teeth at the world’s most dangerous job—landing on the deck of an aircraft carrier—a line of work that Jesse’s young wife, Daisy, struggles to accept. Then comes the war no one expected, in faraway Korea.   Devotion brings us into the foxholes with U.S. Marines and soaring overhead with Tom and Jesse as they battle a North Korean invasion. As the fury of the fighting escalates, Tom and Jesse fly, guns blazing, to save a Marine division cornered at the Chosin Reservoir and outnumbered ten to one. When one of the duo is shot down behind enemy lines and pinned in his burning plane, the other faces an unthinkable choice: watch his friend die or attempt history’s most audacious one-man rescue mission.   A tug-at-the-heartstrings tale of bravery and selflessness, Devotion asks: How far would you go to save a friend?From the Hardcover edition.

    Meanwhile, the titanically talented Babe Ruth was beginning his assault on the home run record, which would culminate on September 30 with his sixtieth blast, one of the most resonant and durable records in sports history. In between those dates a Queens housewife named Ruth Snyder and her corset-salesman lover garroted her husband, leading to a murder trial that became a huge tabloid sensation. Alvin “Shipwreck” Kelly sat atop a flagpole in Newark, New Jersey, for twelve days—a new record. The American South was clobbered by unprecedented rain and by flooding of the Mississippi basin, a great human disaster, the relief efforts for which were guided by the uncannily able and insufferably pompous Herbert Hoover. Calvin Coolidge interrupted an already leisurely presidency for an even more relaxing three-month vacation in the Black Hills of South Dakota. The gangster Al Capone tightened his grip on the illegal booze business through a gaudy and murderous reign of terror and municipal corruption. The first true “talking picture,” Al Jolson’s The Jazz Singer, was filmed and forever changed the motion picture industry. The four most powerful central bankers on earth met in secret session on a Long Island estate and made a fateful decision that virtually guaranteed a future crash and depression.     All this and much, much more transpired in that epochal summer of 1927, and Bill Bryson captures its outsized personalities, exciting events, and occasional just plain weirdness with his trademark vividness, eye for telling detail, and delicious humor. In that year America stepped out onto the world stage as the main event, and One Summer transforms it all into narrative nonfiction of the highest order.

    Coated in red dust, the terrain is bewilderingly empty. And yet multiple spacecraft are circling Mars, sweeping over Terra Sabaea, Syrtis Major, the dunes of Elysium, and Mare Sirenum—on the brink, perhaps, of a staggering find, one that would inspire humankind as much as any discovery in the history of modern science.In this beautifully observed, deeply personal book, Georgetown scientist Sarah Stewart Johnson tells the story of how she and other researchers have scoured Mars for signs of life, transforming the planet from a distant point of light into a world of its own.Johnson’s fascination with Mars began as a child in Kentucky, turning over rocks with her father and looking at planets in the night sky. She now conducts fieldwork in some of Earth’s most hostile environments, such as the Dry Valleys of Antarctica and the salt flats of Western Australia, developing methods for detecting life on other worlds. Here, with poetic precision, she interlaces her own personal journey—as a female scientist and a mother—with tales of other seekers, from Percival Lowell, who was convinced that a utopian society existed on Mars, to Audouin Dollfus, who tried to carry out astronomical observations from a stratospheric balloon. In the process, she shows how the story of Mars is also a story about Earth: This other world has been our mirror, our foil, a telltale reflection of our own anxieties and yearnings.Empathetic and evocative, The Sirens of Mars offers an unlikely natural history of a place where no human has ever set foot, while providing a vivid portrait of our quest to defy our isolation in the cosmos.

    She offered up more than 5,000 orphans tailored to the wish lists of eager parents--hiding the fact that many weren't orphans at all, but stolen sons and daughters of poor families, desperate single mothers, and women told in maternity wards that their babies had died.The publication of Lisa Wingate's novel Before We Were Yours brought new awareness of Tann's lucrative career in child trafficking. Adoptees who knew little about their pasts gained insight into the startling facts behind their family histories. Encouraged by their contact with Wingate and award-winning journalist Judy Christie, who documented the stories of fifteen adoptees in this book, many determined Tann survivors set out to trace their roots and find their birth families.Before and After includes moving and sometimes shocking accounts of the ways in which adoptees were separated from their first families. Often raised as only children, many have joyfully reunited with siblings in the final decades of their lives. In Before and After, Wingate and Christie tell of first meetings that are all the sweeter and more intense for time missed and of families from very different social backgrounds reaching out to embrace better-late-than-never brothers, sisters, and cousins. In a poignant culmination of art meeting life, long-silent victims of the tragically corrupt system return to Memphis with Wingate and Christie to reclaim their stories at a Tennessee Children's Home Society reunion . . . with extraordinary results.

    Trump to President Joseph R. Biden Jr. stands as one of the most dangerous periods in American history.But as # 1 internationally bestselling author Bob Woodward and acclaimed reporter Robert Costa reveal for the first time, it was far more than just a domestic political crisis.Woodward and Costa interviewed more than 200 people at the center of the turmoil, resulting in more than 6,000 pages of transcripts—and a spellbinding and definitive portrait of a nation on the brink.This classic study of Washington takes readers deep inside the Trump White House, the Biden White House, the 2020 campaign, and the Pentagon and Congress, with vivid, eyewitness accounts of what really happened.Peril is supplemented throughout with never-before-seen material from secret orders, transcripts of confidential calls, diaries, emails, meeting notes and other personal and government records, making for an unparalleled history.It is also the first inside look at Biden’s presidency as he faces the challenges of a lifetime: the continuing deadly pandemic and millions of Americans facing soul-crushing economic pain, all the while navigating a bitter and disabling partisan divide, a world rife with threats, and the hovering, dark shadow of the former president.“We have much to do in this winter of peril,” Biden declared at his inauguration, an event marked by a nerve-wracking security alert and the threat of domestic terrorism.Peril is the extraordinary story of the end of one presidency and the beginning of another, and represents the culmination of Bob Woodward’s news-making trilogy on the Trump presidency, along with Fear and Rage. And it is the beginning of a collaboration with fellow Washington Post reporter Robert Costa that will remind readers of Woodward’s coverage, with Carl Bernstein, of President Richard M. Nixon’s final days.

    In 2011, a twenty-six-year-old libertarian programmer named Ross Ulbricht launched the ultimate free market: the Silk Road, a clandestine Web site hosted on the Dark Web where anyone could trade anything—drugs, hacking software, forged passports, counterfeit cash, poisons—free of the government’s watchful eye. It wasn’t long before the media got wind of the new Web site where anyone—not just teenagers and weed dealers but terrorists and black hat hackers—could buy and sell contraband detection-free. Spurred by a public outcry, the federal government launched an epic two-year manhunt for the site’s elusive proprietor, with no leads, no witnesses, and no clear jurisdiction. All the investigators knew was that whoever was running the site called himself the Dread Pirate Roberts. The Silk Road quickly ballooned into $1.2 billion enterprise, and Ross embraced his new role as kingpin. He enlisted a loyal crew of allies in high and low places, all as addicted to the danger and thrill of running an illegal marketplace as their customers were to the heroin they sold. Through his network he got wind of the target on his back and took drastic steps to protect himself—including ordering a hit on a former employee. As Ross made plans to disappear forever, the Feds raced against the clock to catch a man they weren’t sure even existed, searching for a needle in the haystack of the global Internet.Drawing on exclusive access to key players and two billion digital words and images Ross left behind, Vanity Fair correspondent and New York Times bestselling author Nick Bilton offers a tale filled with twists and turns, lucky breaks and unbelievable close calls. It’s a story of the boy next door’s ambition gone criminal, spurred on by the clash between the new world of libertarian-leaning, anonymous, decentralized Web advocates and the old world of government control, order, and the rule of law. Filled with unforgettable characters and capped by an astonishing climax, American Kingpin might be dismissed as too outrageous for fiction. But it’s all too real.

    history. The Tennessee town of Oak Ridge was created from scratch in 1942. One of the Manhattan Project’s secret cities, it didn’t appear on any maps until 1949, and yet at the height of World War II it was using more electricity than New York City and was home to more than 75,000 people, many of them young women recruited from small towns across the South. Their jobs were shrouded in mystery, but they were buoyed by a sense of shared purpose, close friendships—and a surplus of handsome scientists and Army men!But against this vibrant wartime backdrop, a darker story was unfolding. The penalty for talking about their work—even the most innocuous details—was job loss and eviction. One woman was recruited to spy on her coworkers. They all knew something big was happening at Oak Ridge, but few could piece together the true nature of their work until the bomb "Little Boy" was dropped over Hiroshima, Japan, and the secret was out. The shocking revelation: the residents of Oak Ridge were enriching uranium for the atomic bomb.Though the young women originally believed they would leave Oak Ridge after the war, many met husbands there, made lifelong friends, and still call the seventy-year-old town home. The reverberations from their work there—work they didn’t fully understand at the time—are still being felt today. In The Girls of Atomic City, Denise Kiernan traces the astonishing story of these unsung WWII workers through interviews with dozens of surviving women and other Oak Ridge residents. Like The Immortal Life of Henrietta Lacks, this is history and science made fresh and vibrant—a beautifully told, deeply researched story that unfolds in a suspenseful and exciting way.

    But just before sundown on Good Friday, the community was jolted by the most powerful earthquake in American history, a catastrophic 9.2 on the Richter Scale. For four and a half minutes, the ground lurched and rolled. Streets cracked open and swallowed buildings whole. And once the shaking stopped, night fell and Anchorage went dark. The city was in disarray and sealed off from the outside world.Slowly, people switched on their transistor radios and heard a familiar woman's voice explaining what had just happened and what to do next. Genie Chance was a part-time radio reporter and working mother who would play an unlikely role in the wake of the disaster, helping to put her fractured community back together. Her tireless broadcasts over the next three days would transform her into a legendary figure in Alaska and bring her fame worldwide--but only briefly. That Easter weekend in Anchorage, Genie and a cast of endearingly eccentric characters--from a mountaineering psychologist to the local community theater group staging Our Town--were thrown into a jumbled world they could not recognize. Together, they would make a home in it again.Drawing on thousands of pages of unpublished documents, interviews with survivors, and original broadcast recordings, This Is Chance! is the hopeful, gorgeously told story of a single catastrophic weekend and proof of our collective strength in a turbulent world.There are moments when reality instantly changes--when the life we assume is stable gets upended by pure chance. This Is Chance! is an electrifying and lavishly empathetic portrayal of one community rising above the randomness, a real-life fable of human connection withstanding chaos.

    Navy SEAL Chris Kyle recorded the most career sniper kills in United States military history. The Pentagon has officially confirmed more than 150 of Kyle's kills (the previous American record was 109), but it has declined to verify the astonishing total number for this book. Iraqi insurgents feared Kyle so much they named him al-Shaitan (“the devil”) and placed a bounty on his head. Kyle earned legendary status among his fellow SEALs, Marines, and U.S. Army soldiers, whom he protected with deadly accuracy from rooftops and stealth positions. Gripping and unforgettable, Kyle’s masterful account of his extraordinary battlefield experiences ranks as one of the great war memoirs of all time.A native Texan who learned to shoot on childhood hunting trips with his father, Kyle was a champion saddle-bronc rider prior to joining the Navy. After 9/11, he was thrust onto the front lines of the War on Terror, and soon found his calling as a world-class sniper who performed best under fire. He recorded a personal-record 2,100-yard kill shot outside Baghdad; in Fallujah, Kyle braved heavy fire to rescue a group of Marines trapped on a street; in Ramadi, he stared down insurgents with his pistol in close combat. Kyle talks honestly about the pain of war—of twice being shot and experiencing the tragic deaths of two close friends.American Sniper also honors Kyles fellow warriors, who raised hell on and off the battlefield. And in moving first-person accounts throughout, Kyles wife, Taya, speaks openly about the strains of war on their marriage and children, as well as on Chris.Adrenaline-charged and deeply personal, American Sniper is a thrilling eyewitness account of war that only one man could tell.