Roberto Abraham Scaruffi

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Why are so many people content with just earning a salary and working 9-6 their entire adult life? Jennifer Dowdy, Now whenever I see a site that looks ... 2.7k votes I'm fabulously wealthy by any reasonable definition of the word. If I want a glass of clean, healthy water I only need to walk as far as my kitchen faucet. All the water ... Read More » Is Machine learning a mandatory skill to get a job in Google? Robert Love, I work at Google on web search. 114 votes Note: I work for Google and am involved in hiring, both as an interviewer and hiring committee member, but this answer is my own opinion and not that of my employer. Is ma... Read More » Is it possible that one specialized scientist (preferably polymath), who has time-travelled more than 200 years to the past, could construct a working computer from the ground up in less than 20 years? Matt Harbowy, Back off, I'm a scientist. (former Ph... 348 votes No (except possibly the Intel case below), not even if they had the plans and knowhow to do so. Why? What most people don't realize is the actual amount of money and tools... Read More » If someone from the 1950s or earlier suddenly appeared today, what would be the most difficult thing to explain to them about life today? Venkatesh Rao, Author of Tempo: http://tempobook.com 90 votes Based on what my parents, who were teenagers in the 50s, have probably had the hardest time understanding, it would have to be the disintegration of family and community-ce... Read More » What do eigenvalues and eigenvectors represent intuitively? Lors Soren, http://isomorphismes.tumblr.com/tagge... 224 votes I think you actually mean "What are eigenvectors intuitively?" not "What are they exactly?" If you can compute them then you know exactly what they are: they're   ... Read More » How does it feel to get fired (lose your job) suddenly? Jake Hawken, sound designer and musician. 3.6k votes In late august of 2012, my wife and I announced that we'd be having our first child in March. We’d known for several weeks and it felt fantastic to finally share the good n... Read More » How should I prepare for statistics questions for a data science interview ? Dima Korolev, big data guy. 418 votes A candidate who really impresses me would be knowledgeable in: Statistics: Confidence intervals, parameter estimation, p-value, hypothesis testing. ...  Read More » Why did Andrew Ng leave Google research to join Baidu? George Anders, we are the 95% 259 votes I spoke with him over the weekend and he sounded pretty excited about the research opportunities at Baidu. For fuller details, see this write-up of our interview, posted o... Read More » What is the most "you don't say" theorem in mathematics? Adam Merberg, Ph.D. student in mathematics at UC Be... 245 votes The Jordan curve theorem says that a simple closed curve (a continuous curve starting and ending at the same point with no self intersections) divides the plane into two re... Read More » If I'm the CEO of a tech company, why should I consider hiring a QA staff? Ramkumar Balaraman 140 votes There are certain unique advantages that QA staff bring: 1. They are not afraid of destructive testing. Developers subconsciously avoid negative scenario testing. If you us... Read More »

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