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Discussion here reminds me of Rule #3 in Richard Cook's classic "How Complex Systems Fail": Catastrophe requires multiple failures – single point failures are not enough. http://we…

1. Quantum Mechanics and Quantum Computation (on edX, from UC Berkeley: https://www.edx.org/course/quantum-mechanics-quantum-computa... ), taught by Umesh Vazirani. Intro to quantu…

I started using SageMathCloud a couple years ago while taking courses from edX and Coursera in physics and data science. I liked it enough that I joined the project as volunteer co…

The internet is a large, evolving cognitive system. Present information flow, riddled as it is with disinformation, faulty reasoning, and category errors, might be comparable to di…

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