Author: Malcolm Campbell-Verduyn
Publisher: Routledge
ISBN: 1351814079
Category : Political Science
Languages : en
Pages : 323
Book Description
Since the launch of Bitcoin in 2009 several hundred different ‘cryptocurrencies’ have been developed and become accepted for a wide variety of transactions in leading online commercial marketplaces and the ‘sharing economy’, as well as by more traditional retailers, manufacturers, and even by charities and political parties. Bitcoin and its competitors have also garnered attention for their wildly fluctuating values as well as implication in international money laundering, Ponzi schemes and online trade in illicit goods and services across borders. These and other controversies surrounding cryptocurrencies have induced varying governance responses by central banks, government ministries, international organizations, and industry regulators worldwide. Besides formal attempts to ban Bitcoin, there have been multifaceted efforts to incorporate elements of blockchains, the peer-to-peer technology underlying cryptocurrencies, in the wider exchange, recording, and broadcasting of digital transactions. Blockchains are being mobilized to support and extend an array of governance activities. The novelty and breadth of growing blockchain-based activities have fuelled both utopian promises and dystopian fears regarding applications of the emergent technology to Bitcoin and beyond. This volume brings scholars of anthropology, economics, Science and Technology Studies, and sociology together with GPE scholars in assessing the actual implications posed by Bitcoin and blockchains for contemporary global governance. Its interdisciplinary contributions provide academics, policymakers, industry practitioners and the general public with more nuanced understandings of technological change in the changing character of governance within and across the borders of nation-states.
Bitcoin and Beyond
Beyond Bitcoin
Author: Simon Dingle
Publisher: Icon Books
ISBN: 1785788310
Category : Business & Economics
Languages : en
Pages : 175
Book Description
After over a decade of Bitcoin, which has now moved beyond lore and hype into an increasingly robust star in the firmament of global assets, a new and more important question has arisen. What happens beyond Bitcoin? The answer is decentralised finance - 'DeFi'. Tech and finance experts Steven Boykey Sidley and Simon Dingle argue that DeFi - which enables all manner of financial transactions to take place directly, person to person, without the involvement of financial institutions - will redesign the cogs and wheels in the engines of trust, and make the remarkable rise of Bitcoin look quaint by comparison. It will disrupt and displace fine and respectable companies, if not entire industries. Sidley and Dingle explain how DeFi works, introduce the organisations and individuals that comprise the new industry, and identify the likely winners and losers in the coming revolution.
Publisher: Icon Books
ISBN: 1785788310
Category : Business & Economics
Languages : en
Pages : 175
Book Description
After over a decade of Bitcoin, which has now moved beyond lore and hype into an increasingly robust star in the firmament of global assets, a new and more important question has arisen. What happens beyond Bitcoin? The answer is decentralised finance - 'DeFi'. Tech and finance experts Steven Boykey Sidley and Simon Dingle argue that DeFi - which enables all manner of financial transactions to take place directly, person to person, without the involvement of financial institutions - will redesign the cogs and wheels in the engines of trust, and make the remarkable rise of Bitcoin look quaint by comparison. It will disrupt and displace fine and respectable companies, if not entire industries. Sidley and Dingle explain how DeFi works, introduce the organisations and individuals that comprise the new industry, and identify the likely winners and losers in the coming revolution.
Cryptocurrencies and the Blockchain Revolution
Author: Brendan January
Publisher: Millbrook Press
ISBN: 172841153X
Category : Young Adult Nonfiction
Languages : en
Pages : 92
Book Description
In January 2009, a mysterious software developer, Satoshi Nakamoto, exchanged a specially designed code with another developer. The code was a digital currency that Nakamoto had proposed several months before in a paper titled “Bitcoin: A Peer-to-Peer Electronic Cash System.” This was the first Bitcoin transaction. Since then, Bitcoin has become the face of a tech revolution in digital cryptocurrencies based on blockchain technology. Its success has sparked a tech revolution that could fundamentally change global economics. Author Brendan January delves into the world of coders, libertarians, criminals, financial regulators, and crypto-detectives to understand what digital cryptocurrencies have to offer, their limitations and potential pitfalls, security issues, and how they may affect government and financial regulations in the future.
Publisher: Millbrook Press
ISBN: 172841153X
Category : Young Adult Nonfiction
Languages : en
Pages : 92
Book Description
In January 2009, a mysterious software developer, Satoshi Nakamoto, exchanged a specially designed code with another developer. The code was a digital currency that Nakamoto had proposed several months before in a paper titled “Bitcoin: A Peer-to-Peer Electronic Cash System.” This was the first Bitcoin transaction. Since then, Bitcoin has become the face of a tech revolution in digital cryptocurrencies based on blockchain technology. Its success has sparked a tech revolution that could fundamentally change global economics. Author Brendan January delves into the world of coders, libertarians, criminals, financial regulators, and crypto-detectives to understand what digital cryptocurrencies have to offer, their limitations and potential pitfalls, security issues, and how they may affect government and financial regulations in the future.
From Bitcoin to Burning Man and Beyond
Author: John Clippinger
Publisher: ID3 and Off The Common Books
ISBN: 1937146588
Category : Political Science
Languages : en
Pages : 243
Book Description
What can we learn from Bitcoin and Burning Man about re-inventing money and designing better forms of self-governance? Why are “decentralized autonomous organizations” the next great Internet disruption? From Bitcoin to Burning Man and Beyond: The Quest for Autonomy and Identity in a Digital Society explores a new generation of digital technologies that are re-imagining the very foundations of identity, governance, trust and social organization. The fifteen essays of this book stake out the foundations of a new future – a future of open Web standards and data commons, a society of decentralized autonomous organizations, a world of trustworthy digital currencies and self-organized and expressive communities like Burning Man. Among the contributors are Alex “Sandy” Pentland of the M.I.T. Human Dynamics Laboratory, former FCC Chairman Reed E. Hundt, long-time IBM strategist Irving Wladawksy-Berger, monetary system expert Bernard Lietaer, Silicon Valley entrepreneur Peter Hirshberg, journalist Jonathan Ledgard and H-Farm cofounder Maurizio Rossi. From Bitcoin to Burning Man and Beyond was edited by Dr. John H. Clippinger, cofounder and executive director of ID3, [http://www.idcubed.org] and David Bollier, [http://www.bollier.org] an Editor at ID3 who is also an author, blogger and scholar who studies the commons. The book, published by ID3 in association with Off the Common Books, reflects ID3’s vision of the huge, untapped potential for self-organized, distributed governance on open platforms. One chapter that inspires the book’s title traces the 28-year history of Burning Man, the week-long encampment in the Nevada desert that have hosted remarkable experimentation in new forms of self-governance by large communities. Other chapters explore such cutting-edge concepts as: • evolvable digital contracts that could supplant conventional legal agreements; • smartphone currencies that could help Africans meet their economic needs more effective; • the growth of the commodity-backed Ven currency; and • new types of “solar currencies” that borrow techniques from Bitcoin to enable more efficient, cost-effective solar generation and sharing by homeowners. From Bitcoin to Burning Man and Beyond also introduces the path-breaking software platform that ID3 has developed called “Open Mustard Seed,” or OMS. https://idcubed.org/open-platform/platform The just-released open source program enables the rise of new types of trusted, self-healing digital institutions on open networks, which in turn will make possible new sorts of privacy-friendly social ecosystems. (YouTube video on OMS.) https://www.youtube.com/watch?v=tMCzibfVo3M “OMS is an integrated, open source package of programs that lets people collect and share personal information in secure, and transparent and accountable ways, enabling authentic, trusted social and economic relationships to flourish,” said Dr. Clippinger. Introduction 1. Alex Pentland Social Computing and Big Data 2. John H. Clippinger Why Self-Sovereignty Matters 3. David Bollier & John H. Clippinger The Next Great Internet Disruption 4. Maurizio Rossi The New Mestieri Culture of Artisans 5. Peter Hirshberg Burning Man 6. Irving Wladawsky-Berger The Internet of Money 7. Bernard Lietaer Why Complementary Currencies Are Necessary to Financial Stability 8. Stan Stalnaker Ven and the Nature of Money 9. Reed E. Hundt, Jeffrey Schub & Joseph R. Schottenfeld Green Coins 10. Jonathan Ledgard Africa, Digital Identity and the Beginning of the End for Coins 11. Mihaela Ulieru The Logic of Holonic Systems 12. Jeremy Pitt & Ada Diaconescu The Algorithmic Governance of Common-Pool Resources 13. Thomas Hardjono, Patrick Deegan & John H. Clippinger The ID3 Open Mustard Seed Platform 14. Patrick Deegan The Relational Matrix: 15. Harry Halpin The Necessity of Standards for the Open Society
Publisher: ID3 and Off The Common Books
ISBN: 1937146588
Category : Political Science
Languages : en
Pages : 243
Book Description
What can we learn from Bitcoin and Burning Man about re-inventing money and designing better forms of self-governance? Why are “decentralized autonomous organizations” the next great Internet disruption? From Bitcoin to Burning Man and Beyond: The Quest for Autonomy and Identity in a Digital Society explores a new generation of digital technologies that are re-imagining the very foundations of identity, governance, trust and social organization. The fifteen essays of this book stake out the foundations of a new future – a future of open Web standards and data commons, a society of decentralized autonomous organizations, a world of trustworthy digital currencies and self-organized and expressive communities like Burning Man. Among the contributors are Alex “Sandy” Pentland of the M.I.T. Human Dynamics Laboratory, former FCC Chairman Reed E. Hundt, long-time IBM strategist Irving Wladawksy-Berger, monetary system expert Bernard Lietaer, Silicon Valley entrepreneur Peter Hirshberg, journalist Jonathan Ledgard and H-Farm cofounder Maurizio Rossi. From Bitcoin to Burning Man and Beyond was edited by Dr. John H. Clippinger, cofounder and executive director of ID3, [http://www.idcubed.org] and David Bollier, [http://www.bollier.org] an Editor at ID3 who is also an author, blogger and scholar who studies the commons. The book, published by ID3 in association with Off the Common Books, reflects ID3’s vision of the huge, untapped potential for self-organized, distributed governance on open platforms. One chapter that inspires the book’s title traces the 28-year history of Burning Man, the week-long encampment in the Nevada desert that have hosted remarkable experimentation in new forms of self-governance by large communities. Other chapters explore such cutting-edge concepts as: • evolvable digital contracts that could supplant conventional legal agreements; • smartphone currencies that could help Africans meet their economic needs more effective; • the growth of the commodity-backed Ven currency; and • new types of “solar currencies” that borrow techniques from Bitcoin to enable more efficient, cost-effective solar generation and sharing by homeowners. From Bitcoin to Burning Man and Beyond also introduces the path-breaking software platform that ID3 has developed called “Open Mustard Seed,” or OMS. https://idcubed.org/open-platform/platform The just-released open source program enables the rise of new types of trusted, self-healing digital institutions on open networks, which in turn will make possible new sorts of privacy-friendly social ecosystems. (YouTube video on OMS.) https://www.youtube.com/watch?v=tMCzibfVo3M “OMS is an integrated, open source package of programs that lets people collect and share personal information in secure, and transparent and accountable ways, enabling authentic, trusted social and economic relationships to flourish,” said Dr. Clippinger. Introduction 1. Alex Pentland Social Computing and Big Data 2. John H. Clippinger Why Self-Sovereignty Matters 3. David Bollier & John H. Clippinger The Next Great Internet Disruption 4. Maurizio Rossi The New Mestieri Culture of Artisans 5. Peter Hirshberg Burning Man 6. Irving Wladawsky-Berger The Internet of Money 7. Bernard Lietaer Why Complementary Currencies Are Necessary to Financial Stability 8. Stan Stalnaker Ven and the Nature of Money 9. Reed E. Hundt, Jeffrey Schub & Joseph R. Schottenfeld Green Coins 10. Jonathan Ledgard Africa, Digital Identity and the Beginning of the End for Coins 11. Mihaela Ulieru The Logic of Holonic Systems 12. Jeremy Pitt & Ada Diaconescu The Algorithmic Governance of Common-Pool Resources 13. Thomas Hardjono, Patrick Deegan & John H. Clippinger The ID3 Open Mustard Seed Platform 14. Patrick Deegan The Relational Matrix: 15. Harry Halpin The Necessity of Standards for the Open Society
Beyond Bitcoin
Author: Hanna Halaburda
Publisher: Springer
ISBN: 1137506423
Category : Business & Economics
Languages : en
Pages : 192
Book Description
Digital currencies are a fairly new phenomenon brought about by the spectacular rise of the internet. While Bitcoin is the most famous, there are numerous other digital currencies—from Amazon Coin to Zetacoin. Beyond Bitcoin explores the economic forces underlying the design of their features and their potential. Halaburda and Sarvary argue that digital currencies are best understood by considering the economic incentives driving their creators and users. The authors present a framework that will allow systemic analysis of this dynamic environment and support further discussion of the design of digital currencies' features and the competition in the market.
Publisher: Springer
ISBN: 1137506423
Category : Business & Economics
Languages : en
Pages : 192
Book Description
Digital currencies are a fairly new phenomenon brought about by the spectacular rise of the internet. While Bitcoin is the most famous, there are numerous other digital currencies—from Amazon Coin to Zetacoin. Beyond Bitcoin explores the economic forces underlying the design of their features and their potential. Halaburda and Sarvary argue that digital currencies are best understood by considering the economic incentives driving their creators and users. The authors present a framework that will allow systemic analysis of this dynamic environment and support further discussion of the design of digital currencies' features and the competition in the market.
Beyond Bitcoin
Author: Hanna Halaburda
Publisher: Springer Nature
ISBN: 3030889319
Category : Business & Economics
Languages : en
Pages : 223
Book Description
Over the last few years, we have witnessed an upsurge of enthusiasm about cryptocurrencies and, more generally, the so-called blockchain technology. In this new and updated edition, the authors explore what exactly these new technologies entail and promise. They argue that to understand the potential challenges and further developments in the market, one needs to develop an understanding of what needs these innovations fulfill and what business models are consistent with their use. For that, we need to sufficiently understand both the technology and how it affects the economic forces at play. This book goes beyond the headlines that say “blockchain will decentralize everything” and provides in-depth, rigorous analysis of what can be effectively decentralized and how this decentralization will work. The book draws not only on the general knowledge of digital currencies and blockchain technologies, but also on recent academic research on the topic. Featuring a fully updated chapter on cryptocurrencies and new chapters on smart contracts and enterprise blockchains, this book is critical reading for those interested in how technology developments impact business and society.
Publisher: Springer Nature
ISBN: 3030889319
Category : Business & Economics
Languages : en
Pages : 223
Book Description
Over the last few years, we have witnessed an upsurge of enthusiasm about cryptocurrencies and, more generally, the so-called blockchain technology. In this new and updated edition, the authors explore what exactly these new technologies entail and promise. They argue that to understand the potential challenges and further developments in the market, one needs to develop an understanding of what needs these innovations fulfill and what business models are consistent with their use. For that, we need to sufficiently understand both the technology and how it affects the economic forces at play. This book goes beyond the headlines that say “blockchain will decentralize everything” and provides in-depth, rigorous analysis of what can be effectively decentralized and how this decentralization will work. The book draws not only on the general knowledge of digital currencies and blockchain technologies, but also on recent academic research on the topic. Featuring a fully updated chapter on cryptocurrencies and new chapters on smart contracts and enterprise blockchains, this book is critical reading for those interested in how technology developments impact business and society.
Before Babylon, Beyond Bitcoin
Author: David Birch
Publisher: London Publishing Partnership
ISBN: 190799467X
Category : Business & Economics
Languages : en
Pages : 288
Book Description
Technology is changing money: it has been transformed from physical objects to intangible information. With the arrival of smart cards, mobile phones and Bitcoin it has become easier than ever to create new forms of money. Crucially, money is also inextricably connected with our identities. Your card or phone is a security device that can identify you – and link information about you to your money. To see where these developments might be taking us, David Birch looks back over the history of money, spanning thousands of years. He sees in the past, both recent and ancient, evidence for several possible futures. Looking further back to a world before cash and central banks, there were multiple ‘currencies’ operating at the level of communities, and the use of barter for transactions. Perhaps technology will take us back to the future, a future that began back in 1971, when money became a claim backed by reputation rather than by physical commodities of any kind. Since then, money has been bits. The author shows that these phenomena are not only possible in the future, but already upon us. We may well want to make transactions in Tesco points, Air Miles, Manchester United pounds, Microsoft dollars, Islamic e-gold or Cornish e-tin. The use of cash is already in decline, and is certain to vanish from polite society. The newest technologies will take money back to its origins: a substitute for memory, a record of mutual debt obligations within multiple overlapping communities. This time though, money will be smart. It will be money that reflects the values of the communities that produced it. Future money will know where it has been, who has been using it and what they have been using it for.
Publisher: London Publishing Partnership
ISBN: 190799467X
Category : Business & Economics
Languages : en
Pages : 288
Book Description
Technology is changing money: it has been transformed from physical objects to intangible information. With the arrival of smart cards, mobile phones and Bitcoin it has become easier than ever to create new forms of money. Crucially, money is also inextricably connected with our identities. Your card or phone is a security device that can identify you – and link information about you to your money. To see where these developments might be taking us, David Birch looks back over the history of money, spanning thousands of years. He sees in the past, both recent and ancient, evidence for several possible futures. Looking further back to a world before cash and central banks, there were multiple ‘currencies’ operating at the level of communities, and the use of barter for transactions. Perhaps technology will take us back to the future, a future that began back in 1971, when money became a claim backed by reputation rather than by physical commodities of any kind. Since then, money has been bits. The author shows that these phenomena are not only possible in the future, but already upon us. We may well want to make transactions in Tesco points, Air Miles, Manchester United pounds, Microsoft dollars, Islamic e-gold or Cornish e-tin. The use of cash is already in decline, and is certain to vanish from polite society. The newest technologies will take money back to its origins: a substitute for memory, a record of mutual debt obligations within multiple overlapping communities. This time though, money will be smart. It will be money that reflects the values of the communities that produced it. Future money will know where it has been, who has been using it and what they have been using it for.
Cryptoassets: The Innovative Investor's Guide to Bitcoin and Beyond
Author: Chris Burniske
Publisher: McGraw Hill Professional
ISBN: 126002668X
Category : Business & Economics
Languages : en
Pages : 368
Book Description
The innovative investor’s guide to an entirely new asset class—from two experts on the cutting edge With the rise of bitcoin and blockchain technology, investors can capitalize on the greatest investment opportunity since the Internet. Bitcoin was the first cryptoasset, but today there are over 800 and counting, including ether, ripple, litecoin, monero, and more. This clear, concise, and accessible guide from two industry insiders shows you how to navigate this brave new blockchain world—and how to invest in these emerging assets to secure your financial future. Cryptoassets gives you all the tools you need: * An actionable framework for investigating and valuing cryptoassets * Portfolio management techniques to maximize returns while managing risk * Historical context and tips to navigate inevitable bubbles and manias * Practical guides to exchanges, wallets, capital market vehicles, and ICOs * Predictions on how blockchain technology may disrupt current portfolios In addition to offering smart investment strategies, this authoritative resource will help you understand how these assets were created, how they work, and how they are evolving amid the blockchain revolution. The authors define a clear and original cryptoasset taxonomy, composed of cryptocurrencies, cryptocommodities, and cryptotokens, with insights into how each subset is blending technology and markets. You’ll find a variety of methods to invest in these assets, whether through global exchanges trading 24/7 or initial cryptoasset offerings (ICOs). By sequentially building on the concepts of each prior chapter, the book will provide you with a full understanding of the cryptoasset economy and the opportunities that await the innovative investor. Cryptoassets represent the future of money and markets. This book is your guide to that future.
Publisher: McGraw Hill Professional
ISBN: 126002668X
Category : Business & Economics
Languages : en
Pages : 368
Book Description
The innovative investor’s guide to an entirely new asset class—from two experts on the cutting edge With the rise of bitcoin and blockchain technology, investors can capitalize on the greatest investment opportunity since the Internet. Bitcoin was the first cryptoasset, but today there are over 800 and counting, including ether, ripple, litecoin, monero, and more. This clear, concise, and accessible guide from two industry insiders shows you how to navigate this brave new blockchain world—and how to invest in these emerging assets to secure your financial future. Cryptoassets gives you all the tools you need: * An actionable framework for investigating and valuing cryptoassets * Portfolio management techniques to maximize returns while managing risk * Historical context and tips to navigate inevitable bubbles and manias * Practical guides to exchanges, wallets, capital market vehicles, and ICOs * Predictions on how blockchain technology may disrupt current portfolios In addition to offering smart investment strategies, this authoritative resource will help you understand how these assets were created, how they work, and how they are evolving amid the blockchain revolution. The authors define a clear and original cryptoasset taxonomy, composed of cryptocurrencies, cryptocommodities, and cryptotokens, with insights into how each subset is blending technology and markets. You’ll find a variety of methods to invest in these assets, whether through global exchanges trading 24/7 or initial cryptoasset offerings (ICOs). By sequentially building on the concepts of each prior chapter, the book will provide you with a full understanding of the cryptoasset economy and the opportunities that await the innovative investor. Cryptoassets represent the future of money and markets. This book is your guide to that future.
Bitcoin and Cryptocurrency Technologies
Author: Arvind Narayanan
Publisher: Princeton University Press
ISBN: 1400884152
Category : Computers
Languages : en
Pages : 335
Book Description
An authoritative introduction to the exciting new technologies of digital money Bitcoin and Cryptocurrency Technologies provides a comprehensive introduction to the revolutionary yet often misunderstood new technologies of digital currency. Whether you are a student, software developer, tech entrepreneur, or researcher in computer science, this authoritative and self-contained book tells you everything you need to know about the new global money for the Internet age. How do Bitcoin and its block chain actually work? How secure are your bitcoins? How anonymous are their users? Can cryptocurrencies be regulated? These are some of the many questions this book answers. It begins by tracing the history and development of Bitcoin and cryptocurrencies, and then gives the conceptual and practical foundations you need to engineer secure software that interacts with the Bitcoin network as well as to integrate ideas from Bitcoin into your own projects. Topics include decentralization, mining, the politics of Bitcoin, altcoins and the cryptocurrency ecosystem, the future of Bitcoin, and more. An essential introduction to the new technologies of digital currency Covers the history and mechanics of Bitcoin and the block chain, security, decentralization, anonymity, politics and regulation, altcoins, and much more Features an accompanying website that includes instructional videos for each chapter, homework problems, programming assignments, and lecture slides Also suitable for use with the authors' Coursera online course Electronic solutions manual (available only to professors)
Publisher: Princeton University Press
ISBN: 1400884152
Category : Computers
Languages : en
Pages : 335
Book Description
An authoritative introduction to the exciting new technologies of digital money Bitcoin and Cryptocurrency Technologies provides a comprehensive introduction to the revolutionary yet often misunderstood new technologies of digital currency. Whether you are a student, software developer, tech entrepreneur, or researcher in computer science, this authoritative and self-contained book tells you everything you need to know about the new global money for the Internet age. How do Bitcoin and its block chain actually work? How secure are your bitcoins? How anonymous are their users? Can cryptocurrencies be regulated? These are some of the many questions this book answers. It begins by tracing the history and development of Bitcoin and cryptocurrencies, and then gives the conceptual and practical foundations you need to engineer secure software that interacts with the Bitcoin network as well as to integrate ideas from Bitcoin into your own projects. Topics include decentralization, mining, the politics of Bitcoin, altcoins and the cryptocurrency ecosystem, the future of Bitcoin, and more. An essential introduction to the new technologies of digital currency Covers the history and mechanics of Bitcoin and the block chain, security, decentralization, anonymity, politics and regulation, altcoins, and much more Features an accompanying website that includes instructional videos for each chapter, homework problems, programming assignments, and lecture slides Also suitable for use with the authors' Coursera online course Electronic solutions manual (available only to professors)
Cryptocurrencies
Author: The New York Times Editorial Staff
Publisher: The Rosen Publishing Group, Inc
ISBN: 164282125X
Category : Young Adult Nonfiction
Languages : en
Pages : 226
Book Description
The worlds of finance and technology have been rocked by Bitcoin and other cryptocurrencies: encrypted digital currency created by complex computer algorithms. First developed in 2009 and launching several speculative frenzies, cryptocurrencies have created and destroyed fortunes over their turbulent history. Across years of New York Times articles, readers will discover the unfolding story of a technology that, while rarely performing as promised, has produced profound effects that cannot be ignored.
Publisher: The Rosen Publishing Group, Inc
ISBN: 164282125X
Category : Young Adult Nonfiction
Languages : en
Pages : 226
Book Description
The worlds of finance and technology have been rocked by Bitcoin and other cryptocurrencies: encrypted digital currency created by complex computer algorithms. First developed in 2009 and launching several speculative frenzies, cryptocurrencies have created and destroyed fortunes over their turbulent history. Across years of New York Times articles, readers will discover the unfolding story of a technology that, while rarely performing as promised, has produced profound effects that cannot be ignored.