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  1. X

    Data Sufficiency Question

    Ah, I get it, thanks! Forgot that factoring only gives you one possible solution, not the only solution :P
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    GMAT math question

    Ok, just did it for all of em and got the right answer (D)! Although I see that picking small numbers and plugging would be a better strategy on test day, but wanted to understand the notation first :P Thanks so much for your help!
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    GMAT math question

    Ah, I think I get it. So to evaluate choice (A), I would do the following(?): f(x) = 1 - x <-- set up provided by (A) f(1 - x) = 1 - (1 - x) <--- plugging in (1-x) for x f(1 - x) = x <--- restating So now I have the two following statements: f(x) = 1 - x f(1 - x) = x If I...
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    Data Sufficiency Question

    This is a problem from my GMAT practice exam that gives me the right answer but not an explanation as to why. The question is formatted as a data sufficiency question, which means that it asks you whether a pair of statements would be individually and / or together sufficient to answer the...
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    GMAT math question

    So I should substitute (1-x) for (x) in every of the 5 choices and see which still equals (1-x)?
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    GMAT math question

    OK, so I'm taking this GMAT practice test online, and I got stuck on this question. The software tells me the correct answer, but not the explanation. What I'm really stuck on is the wording of the question - it's been 10 years since my last calculus class, and even though it's an algebra...
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    Popularizers bring ‘Power to the People’

    Most people are happier to learn about the drunk driving of Paris Hilton than to pick up a book on an educational subject.
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    Morality and perception

    So JoeDawg, according to you, a free market fails because people sometimes can't afford stuff? There has to be a way to allocate limited resources to unlimited wants. There's no "fair" method, any method will favor one group of people to another. Like I said, name a "fair" method that...
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    Free Will

    How does it know any difference? It just does what satisfies itself. It can say "I have free will because I'm choosing to do these things", when from our point of view it really doesn't.
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    Free Will

    Because it is the only definition that can fit the impliciations of the words being used, as well as what people perceive it to mean. Otherwise, you can say that the computer I'm sitting at right now has free will.
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    Morality and perception

    The ability to manage money is only one of the requirements of becoming wealth. Earning is important too. Incomes are correlated to IQs, as much as you'd like to say otherwise. Plz stop saying opinions that are completely irrelavant. You're losing...
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    Airplane and Conveyor Belt Debate

    Plane on a treadmill I read this puzzle recently, There is a plane on an endless treadmill. The thing about this treadmill is that however fast the plane is moving forward, the treadmill goes the same speed backwards. Would a plane be able to take off of this treadmill? The only...
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    Why do we rotate along with the earth's rotation?

    Gases have friction between them.
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    Free Will

    That's the same as asking "Can God create a rock so heavy that not even he could move it?" I'm not sure if this logic disproves omnipotence, but it is illogical in my mind to begin with.
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    News Resolution on Jerusalem?

    I think we should evacuate jerusalem and then nuke it to the ground so that all that's left is a bunch of radioactive dirt. When children can't share, you take it away.
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    News US snipers baiting Iraqis

    I would say this is nothing like the OP case. When these bombs were designed, they weren't thinking "Oh what if children come around later and play with these things because they were colorful?" Children can play w/ whatever they want, colorful or not. The color is meant as a safety device...
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    News Ahmadinejad Interview

    Has today's questions-&-answers session between Ahmadinejad and a bunch of students at Columbia University been released yet? Anyone have a link?
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    Can a cube be cut in 27 smaller cubes in less than 6 cuts?

    I didn't use acid because it won't travel sideways to make a "cut" and I'm too lazy to turn the cube after every "cut" :P And I was thinking of a "cut" as the action of the motion of the knife, not the resulting change in shape.
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    EMERGENCY - What is

    *Punches you in the face* "The opposite of that" Seriously, I don't know how else to explain it without using other words...?!?
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    Free Will

    Which is why "true" free will can't exist, at least in my opinion. Only the illusion can exist as a result of us being complex machines.
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    About Evolution

    A species that lasts indefinitely would be the failure of evolution, not the other way around. Evolution is the constant change in species, not a means to an end. If change stops, evolution stops.
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    Can one man make a difference?

    I look at it this way: If that person had not done what they did, would the world be different than it is now? If Einstein hadn't discovered SR and GR, would the world be different? Yes; Therefore, he made a difference. Now, yes, in order to change the world, you have to have a world...
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    Arrogance of the Gods

    arrogance (uncountable) The act or habit of arrogating, or making undue claims in an overbearing manner; that species of pride which consists in exorbitant claims of rank, dignity, estimation, or power, or which exalts the worth or importance of the person to an undue degree; proud contempt...
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    Morality and perception

    Your sample size of intelligent people that can't balance their checkbook is intriguiging, but irrelavant. There is a correlation between income and IQ in a capitalistic society. More intelligent people have an easier time attaining higher education, getting better jobs, moving up, etc... Do...
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    Is there such thing as a truly selfless act?

    In conclusion, we've taken all the truly selfless people in society and placed them into mental institutions, their actions are random and didn't make sense to us.
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    The Golden Rule versus the Platinum Rule

    I think both rules are bogus. Golden Rule: If you treat others as you wish to be treated, you might do something that they don't wish. Not everyone wishes to be treated the same way, and the absolutist thinking that everyone wishes to be treated as you do is arrogant. Platinum Rule...
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    Morality and perception

    Consider this: Set up any simple game that does not favor one group of people over another? No matter what you do, there will be some factors that help in winning the game, whether it requires intelligence, physical strength, creativity, etc... "Fairness" is not in the result, but in the...
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    Morality and perception

    I disagree that your first point logically leads to the second one. I also disagree with the first point entirely. I think the market was set up to be an efficient economic system, and coincidentally favors some people (more intelligent people) because they are often able to take advantage...
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    Morality and perception

    JoeDawg, no one ever claimed that free markets were truly "free", its just a term. They're free in terms of allowing a large degree of freedom, not in being anarchy. The way I see it, the world has limited resources, and they have to be divided among people in some way. In my opinion...
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    Free Will

    In order for free will and determinism to co-exist, you have to change the defintion of free will, which is exactly what compatibilism does. But if you except determinism, then truly free will can not exist, only the appearance of one.