I am so glad to see this from Bill. Until we drastically improve the under pinning technology to an advance mature version of Quantum Computing; AI is not a threat in the non-criminal use. The only danger is when terrorists, drug cartels, and other criminals uses AI such as drones, robotics, bots, etc. to attack, burglarize, murder, apply their terror, etc.; and that is not AI doing these things on their own.
Munger, Gates on future of AI
Charlie Munger, Berkshire Hathaway vice-chairman shares his thoughts on American Express, Costco and IBM’s future working with artificial intelligence. And Bill Gates, explains why it will be a huge help.
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The assumption that the an electron-spin qubit (quantum bit) can be both spin-up and spin-down at the same time is based on an incorrect concept of Electron Spin. http://vixra.org/pdf/1306.0141v3.pdf