Roberto Abraham Scaruffi

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I don't understand how this equation is possible, it seems correct, but can someone explain it? Derek Ross, Inventor, Analyst, Husband, Father 195 votes Start again... x² - x² = x² - x² Factor both sides... x(x - x) = (x + x)(x - x) ... Read More » As a software engineer, what's the best skill set to have for the next 5-10 years? Quincy Larson, teacher at FreeCodeCamp-com 2.2k votes The ability to say "no" to shiny new toys. Yes, new tools are exciting. But don't spread yourself too thin. Choose a few tools and stick with them. It's better to be good with...  Read More » How can you prove that [math]1 = 1[/math], without assuming that any other number equals itself? Ravshan Kh, Grad Student (Economics) 111 votes At secondary school I have seen a skit where two 5th graders discuss the nature of axioms: A: Parallel lines do not intersect B: You mean they never intersect? Nowhere? A: Yes...  Read More » If you were imprisoned in a room for 3 months, had a computer with internet, and all your basic needs, what would do on the computer during that time? John Watmuff 322 votes I'd go here: www.seadope.com It is a somewhat experimental website that provides direct access to the personal computer of Eugene. B. Hayes -- a goofball FBI agent, living in...  Read More » How is it possible that Warren Buffett and other investors can make billions? Joseph Philleo, High School Senior 155 votes Albert Einstein once said: Compound interest is the eighth wonder of the world. He who understands it, earns it ... he who doesn't ... pays it. Warren Buffett understood it. ...  Read More » How much should you read if you want to get rich? Dan Kanivas, investor, veteran, runner, and bookworm 322 votes Here is Todd Combs, one of Warren Buffett's handpicked portfolio managers, talking about how he learned that he needed to read 500 pages per day in order to be successful a...  Read More » A software engineer in my team doesn't know how to clean up her computer filled with malware. Should I get my boss to fire her? Janko Jerinic, software engineer; Amazonian, ex-Microsoftie, ex-entrepreneur. 291 votes If I were your boss and you came up to me with such a suggestion I would most likely: Fire you. Fire the person that conducted the behavioral interview and gave you a hire. D... Read More » Why don't billionaires increase their net worths? Jon Mixon 123 votes To what end…? At 2 billion dollars. Peter Thiel not only has enough to last him several lifetimes, he has earned so much wealth that if he chooses to leave it to his child... Read More » Why does Gordon Ramsay eat crab cakes first when determining a restaurant's quality? Nicholas Moyne 250 votes Normally these kind of silly litmus tests annoy me but this one is kind of intriguing. I think because crab cakes are very easy to make and very hard to make well, a lot o... Read More » How can I increase my productivity while studying? Catherine Chen, Data Scientist 45 votes Many people are talking about "First step - Eliminate phone distraction". BUT HOW? Is there a quick and practical way without ditching your phone? The answer is YES. There ...  Read More »

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