Traces the eccentric life of legendary mathematician Paul Erdos, a wandering genius who fled his native Hungary during the Holocaust and helped devise the mathematical basis of computer science.

For decades, mathematicians the world over would open their doors to find Paul Erdos--homeless and relying on others while he explored the realm of mathematics. Schechter recounts the fascinating story of this brilliant, unusual man who developed, with pencil and paper, the mathematics behind computer science. photo insert.

For over half a century, in the middle of the night, or in the morning, mathematicians in Budapest or Berkeley, Prague or Sydney, would be summoned by a knock at their front door. There on their doorstep they would find one of the greatest mathematicians of the 20th century - Paul Erdos, a small suitcase in one hand and a bag full of papers in the other, announcing, My brain is open. Then with his host and other mathematicians assembled as needed, Erdos would begin another mathematical journey. Literally homeless, without even a bank account, Erdos would rely on his host to tend to his daily needs while he explored the realm of mathematics. Before long, fuelled by caffeine or Benzedrine, Erdos would exhaust his hosts. Brain still wide open, he would take off to mathematical conferences, or visit another colleague, logging hundreds of miles on his journeys. This text is an exploration of the world of mathematics in which Erdos moved, an exciting world vital to the technology of the 20th century but largely unknown to many.

BRILLIANTLY EXPLORING TODAY'S CUTTING-EDGE BRAIN RESEARCH, MIND WIDE OPEN IS AN UNPRECEDENTED JOURNEY INTO THE ESSENCE OF HUMAN PERSONALITY, ALLOWING READERS TO UNDERSTAND THEMSELVES AND THE PEOPLE IN THEIR LIVES AS NEVER BEFORE. Using a mix of experiential reportage, personal storytelling, and fresh scientific discovery, Steven Johnson describes how the brain works -- its chemicals, structures, and subroutines -- and how these systems connect to the day-to-day realities of individual lives. For a hundred years, he says, many of us have assumed that the most powerful route to self-knowledge took the form of lying on a couch, talking about our childhoods. The possibility entertained in this book is that you can follow another path, in which learning about the brain's mechanics can widen one's self-awareness as powerfully as any therapy or meditation or drug. In Mind Wide Open, Johnson embarks on this path as his own test subject, participating in a battery of attention tests, learning to control video games by altering his brain waves, scanning his own brain with a $2 million fMRI machine, all in search of a modern answer to the oldest of questions: who am I? Along the way, Johnson explores how we "read" other people, how the brain processes frightening events (and how we might rid ourselves of the scars those memories leave), what the neurochemistry is behind love and sex, what it means that our brains are teeming with powerful chemicals closely related to recreational drugs, why music moves us to tears, and where our breakthrough ideas come from. Johnson's clear, engaging explanation of the physical functions of the brain reveals not only the broad strokes of our aptitudes and fears, our skills and weaknesses and desires, but also the momentary brain phenomena that a whole human life comprises. Why, when hearing a tale of woe, do we sometimes smile inappropriately, even if we don't want to? Why are some of us so bad at remembering phone numbers but brilliant at recognizing faces? Why does depression make us feel stupid? To read Mind Wide Open is to rethink family histories, individual fates, and the very nature of the self, and to see that brain science is now personally transformative -- a valuable tool for better relationships and better living.

What are you willing to lose for a connected life? Digital detox expert Tanya Goodin explores the cost that our digital life inflicts on our offline existence, and offers a toolkit to anyone who has lost their way. Whether you are dealing with a partner who is mindlessly scrolling rather than listening to you (phubbing), flooding social media with your child’s image (sharenting), or panicking whenever you misplace your phone (nomophobia), learn how to recognise and label harmful habits– both of yourself and others – and find actionable answers in this book. The collision of our online and offline worlds has left us more dependent on technology than ever before, and even more desperate to log off. My Brain Has Too Many Tabs Open is your key to finding digital balance and addressing strange new social norms. Complete with diagnostic guides to tell-tale signs and a manifesto for improved digital citizenship, this habit-improving bible offers the conversation-starting vocabulary we so desperately need to understand and untangle our relationship with technology for a more humane world. Among the scenarios included are: Doomscrolling – endlessly consuming doom-and-gloom news, a habit perpetuated by attention-seeking algorithms that triggers anxiety and depression; Comparison Culture – 52% of teens feel less confident because of feeling inadequate when comparing their social media profiles with other people’s; Vampire Shoppers – dead-of-night, sleepless shoppers who spend a third more than daytime shoppers, and range from nocturnal gamers to exhausted parents; Digital Legacies – before the end of the century there could be 4.9 billion deceased internet users, yet only 7% of us want our online profiles maintained after death; Cyberchondria – Dr Google is causing a wave of misdiagnoses from anxious searchers, with 35% of all US adults among this number; Clicktivism – also known as slacktivism, is virtue signalling through performative alignment with online causes, but can it ever amount to meaningful change? Both a wake-up call and a user’s guide, My Brain Has Too Many Tabs Open is your key to finding digital balance.

Looking at the body, mind and soul to answer the question: What exactly is a human being? Modern research is uncovering more and more detail of what our brain is and how it works. We are living, thinking creatures who carry around with us an amazing organic supercomputer in our heads. But what is the relationship between our brains and our minds-and ultimately our sense of identity as a person? Are we more than machines? Is free-will an illusion? Do we have a soul? Brain Imaging Scientist Sharon Dirckx lays out the current understanding of who we are from biologists, philosophers, theologians and psychologists, and points towards a bigger picture that suggests answers to the fundamental questions of our existence. Not just "What am I?", but "Who am I?"-and "Why am I?" Read this book to gain valuable insight into what modern research is telling us about ourselves, or to give a sceptical friend to challenge the idea that we are merely material beings living in a material world.

Dr Daniel Gibbs is one of 50 million people worldwide with an Alzheimer's disease diagnosis. Unlike most patients with Alzheimer's, however, Dr Gibbs worked as a neurologist for twenty-five years, caring for patients with the very disease now affecting him. Also unusual is that Dr Gibbs had begun to suspect he had Alzheimer's several years before any official diagnosis could be made. Forewarned by genetic testing showing he carried alleles that increased the risk of developing the disease, he noticed symptoms of mild cognitive impairment long before any tests would have alerted him. In this highly personal account, Dr Gibbs documents the effect his diagnosis has had on his life and explains his advocacy for improving early recognition of Alzheimer's. Weaving clinical knowledge from decades caring for dementia patients with his personal experience of the disease, this is an optimistic tale of one man's journey with early-stage Alzheimer's disease. Soon to be a documentary film on MTV/Paramount +.