Joined in 2023 
82 
63 About this deal
He discusses why our current supercomputers are unable to solve these problems and how quantum computers could. He breaks the problems down to their molecular levels to show how they could be solved with enough computational power. When tediously computing the paths taken by a mouse in a maze, a digital computer has to painfully analyze each possible path, one after the other. A quantum computer, however, simultaneously analyzes all possible paths at the same time." Today, that crude and resource-eating process of nitrogen-fixing first invented by Haber is being challenged by quantum scientists. A warts-and-all portrait of the famed techno-entrepreneur—and the warts are nearly beyond counting.
Kaku gives the reader a vague idea of how quantum computing works, or may work in its various immplementations. He doesn't give you any idea of how you might solve an actual problem (presumably because few people have the mathematical expertise to understand quantum computing on a useful level). Instead he mainly writes about a number of currently unsolved problems that might yield to quantum computers someday. I found the discussion interesting from a general scientific / futuristic perspective but little of it was "about" quantum computing per se. To illustrate this idea, the analogy of Schrödinger’s cat was created. While the cat is in the box, the cat can be considered to be both dead, alive, and all states in between – until it’s observed. At that point, all the states of the cat collapse into the measurable one. So what is it that makes quantum computers so powerful? Well, two key factors contribute to this power. The underlying idea of this book is right up there in the title: quantum computers will change everything. One more name needs to be added to this esteemed list, that of Hugh Everett. For a long time, scientists argued about the wave theory and the idea that a wave collapsed into a single reality when measured. This was a huge problem to overcome until Everett proposed that maybe the wave doesn’t actually collapse; maybe all versions of the reality experienced by the wave exist simultaneously.When a quantum computer can outperform a digital computer at a specific task, it’s known as quantum supremacy. Clearly, this point has already been reached. What’s more, we’ve only just scratched the surface of what’s possible. There’s hope, though. Mother nature achieves coherence at regular temperatures in a little process called photosynthesis. So scientists are studying how coherence is achieved in nature in the hope of finding a way to recreate the process in a computer. Even better, because ultimately, all things tiny are quantum. Kaku dives into our future with genetic medicine which will revolutionize our healthcare. Cancer isn’t a foreign invader; it’s created by our own healthy cells. Once we reach adulthood, some cells are programmed to die as others divide. In the case of cancer, healthy cells forget to die off and instead reproduce at an alarming rate. Earth is warming up as a result of human behavior. This warming is creating a variety of problems. One of those is the release of the greenhouse gas methane due to the melting of polar ice caps. As it’s released, it contributes to yet more global warming.
What’s now known as the Antikythera Mechanism provided a highly complex simulation of the universe as it was known at the time. The device could make predictions about events like eclipses, and it could even calibrate in anticipation of changes in speed due to the elliptical orbit of the Earth. Alternately admiring and critical, unvarnished, and a closely detailed account of a troubled innovator. Author: Digital computation is bit by bit, quantum is... Never mind. Let me tell you about different approaches used to build quantum computers by different companies and research projects.In 1918, Fritz Haber won the Nobel Prize in Chemistry for inventing a process which used intense heat and pressure to convert nitrogen into nitrate fertilizer. As a result, a green revolution started, which produced enough food to grow the human species into the 8 billion population size that it is today. Another thing that drove me nuts was how America-centric it is. He often talks about all the benefits for "the country" and how the citizens of "this entire country" will have such and such. I'm no expert on quantum mechanics. I took the advice of other reviewers to read Scott Aaronson's review before starting. I have nothing to add to Aaronson's critique but I recommend it for perspective. I found the book to be very informative, engaging, and accessible for anyone who is interested in learning about quantum computing. The author writes with clarity, enthusiasm, and humor, using analogies, examples, and anecdotes to illustrate complex ideas and concepts. He also provides references and suggestions for further reading for those who want to delve deeper into the topic. Fortunately, theoretical physicist Michio Kaku has provided a guidebook to the real-life frontier, titled “Quantum Supremacy: How the Quantum Computer Revolution Will Change Everything.”
Quantum computing could change our perspective on the cosmos. (Illustration: Harmonia Macrocosmica, 1660 / Microsoft, 2022 / Alan Boyle) Quantum calculations could also direct the course of gene-editing therapies with the potential of heading off diseases before they arise — an application that raises hopes as well as ethical concerns. Technological advancements have improved our quality and length of life. From sanitation to antibiotics and vaccines to better nutrition, we’ve taken the human race from lifespans of approximately 30 years to 70 years and improved the overall quality of those lifespans, too. But we’ve done all of this largely by trial and error. When it comes to things like cancer and Alzheimer's where there are so many factors at play we may never be able to find answers on our own, quantum computers may save us. An oddly entertaining collection of essays that covers more than 100 songs but doesn’t really explain the decade that created them—which may be beside the point. If the reader is a bit suspicious of both the future of computing and AI and how it will affect our lives, Kaku’s effort is heads above the numerous books I’ve read on quantum computing work, separately, and the great potential when working together. Kaku produces great insights and explanations of how they work together. As a physicist, his investigation clears up many of the challenging technical issues that are glossed over by non-scientist authors. This is a huge differentiator.
Success!
Me: Very well. I get this: quantum computers will change EVERYTHING. You've described the EVERYTHINNG. It was pretty interesting, and some of this information was new to me. Thanks to all of these inventions and discoveries, we understand the pieces and processes needed to produce the energy that sustains life. But there are still many obstacles to overcome. Just like Haber’s crude process for nitrogen-fixing, many of our attempts at coming up with clean energy are actually sourced through unsustainable means, and our efforts at discovery are still done largely by trial and error. If the description of the path integral formulation sounds familiar, that’s probably because we’ve already talked about how quantum computers can experience and analyze all possibilities simultaneously before choosing the best solution. Everything these scientists and inventors of the past created has led to the development of what we know as quantum science today.
Among those artifacts was a strange hunk of bronze. It was clearly man-made but impossible to identify at the moment of its discovery. In fact, this piece of metal kept researchers confused for decades. In the 1970s, X-ray imaging was used to investigate the artifact, but it wasn’t until CT scans were published in 2006 that researchers started to recognize the implications of the device. Part II: Quantum Computers. This part describes the various types and architectures of quantum computers, such as superconducting, trapped ion, photonics, topological, and quantum annealing. It also discusses the challenges and limitations of building and operating quantum computers, such as scalability, error correction, and noise. These computers can also help us bottle the power of the sun. The current state of fusion reactors is moving forward. In December 2022, a fusion reaction greater than the amount of energy it took to create that reaction was achieved.
Author: Because quantum computers will be much more powerful than classical computers, millions times faster. Expertly describes and rectifies common misconceptions about quantum computing—a technology regarded by experts as one that is likely to have profound societal implications. . . . Kaku deftly navigates the relevant scientific landscape. . . . Lucid. . . . Kaku excels at developing understandable metaphors for the complexities of quantum mechanics and computing. . . . Well written and accessible, offering readers a comprehensive overview of quantum computing, its underlying principles, and its potential.” — Science
Related:
Great Deal 
New Comment