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Radix

618 karma · joined December 7, 2008

Hi :) I am at benjamin serrato at gmail.

http://news.ycombinator.com/item?id=840652

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Radix··on How to Ace Calculus: The Art of Doing Well in Technical Courses
I think you make an important point, but I'm not sure the post takes any particular focus on visual representation other than a graph is generally an easier way to intuit what a derivative is. His repeated use of the word concept suggests insight for him requires a more general abstraction.

As an aside, why do or did people claim there is visual learning aside from spatial learning? I don't experience visual and spatial imagination as different things. (With reasoning about time always assumed.)

Radix··on Calculus Revisited - a complete self-study calculus course from MIT OCW
If you go looking it isn't too difficult to find material like this. Many of the posters hear have jumped in with their favorite resources. But, where do you all go when you want to ask potentially dumb questions as you would an instructor in class or of classmates? Khan Academy has a nice Q/A section for each video, but the best I've seen is PhysicsForums. Anything better?
Radix··on Why Minecraft Matters
Thank you both.
Radix··on The Rise of the New Global Elite
I try to avoid sarcasm in comments. It seems like one is packing more meaning into a short comment, but without knowing a person or body language the comment is often unclear.

Here I think you meant your comment as a final unavoidable contradiction to the GPs post, but I recall reading some lore on a father of the internet steering the RFC process while a government branch was working on another standard meant to be primary. (I'd look it up but I'm on my mobile.) So I doubt we can say it was more the government institution rather than the will of the builders which led to the internet which is more in line with the GP and doesn't take away from the idea that their positions made their work possible.

Radix··on Why your child's school bus has no seat belts
I challenge you to come up with a punishment that would work not just to keep kids in their seats, but also to get them to buckle their belts. At six kids per year I'm against punishing kids for being kids. I imagine there is some other program imaginable that will save more children's lives per dollar than seatbelts in school busses. It isn't like the government has the money to spare.
Radix··on Google sends Cr-48 to "Will it Blend?"
I find your second paragraph unsettling and it took me a while to see why. It's because, I believe, your premise is (mostly) wrong. The advertisement is effective because the culture does not condone destruction of perfectly good gadgets. Instead it makes us cringe, it's like burning a twenty; it's just not done. And that's why it's effective.

(Not that I'd give this an up-vote.)

Radix··on Build a better spell checker, win $10,000
They probably have to be 18 to grant irrevocable, royalty-free, worldwide right and license. But maybe they should have made it work somehow.
Radix··on How to Hack the Psychology of Student Motivation
It's interesting for me to hear you describe this as I understand Texas is trying something similar with a program called Avid. My best friend is tutoring, er, facilitating for a smaller district. She tells me it's hard. You have the normal issues of kids not listening (either some classes just go "bad" or sophomore year causes kids to be especially...) but also have to deal with the kids expecting a more normal student-teacher relationship becoming frustrated that they aren't being given answers or being stubborn about how their teacher did it differently. IIRC, the program is for kids who neither parent has a degree so I wonder how much that plays into the difficulties of the program.
Radix··on Why we’re really happy with AppEngine (and not going anywhere else)
If you want to see the answer to your question turn show dead on. Someone made a mistake.
Radix··on SSH scans - I caught one
gxti seems to have been mildly aware of this, but I just set up ssh at home on 2222. So thanks for pointing this out.
Radix··on Ask HN: Do you think intuition is as valuable as rational thinking?
Intuition and rationality are reflexive. At all times one informs the other. Some people prefer to lead or focus on rationality, where their rational mind trains their intuition, and some lead or focus on their intuition, where their intuition is checked by their rational mind.

I don't believe the two approaches can be meaningfully separated, but some people try to do so. Which can only cause problems as each belongs to a different type of problem. One doesn't rationalized where a lobbed ball will land when going to catch it, but a non-expert doesn't intuit where a mortar will land upon firing it.

Radix··on 1 in 5 Facebook Employees Worked at Google
That's also all I got. Maybe you weren't as clear as you believe and your sarcasm is misplaced.
Radix··on Email from Steve Jobs re: Java and OS X
It's a legal thing. He mentioned his software was for the healthcare field. He has to, or chooses to, end all emails like that because it's common to the field.
Radix··on Hans Rosling: The Good News of the Decade?
This is really good, though I don't know what will stay with me. It's probably just good for people to see such a strong communicator talk about why statistics matters.
Radix··on The Gentle Art of Poverty
And when you get sick they'll ensure you aren't in pain by giving you morphine, which of course hastens your death. (Only barely hyperbole.)
Radix··on Can Honest Tea Say No to Coke, Its Biggest Investor?
:D That's how I read it first, but the second and third sentences likely refer to Coke as an organization, not his friends at Coke. (Or, at least that's how I would spin it if I'm wrong.)
Radix··on Sam's Club will offer small business loans ($5,000 to $25,000)
* They performed an experiment that showed that having a single security guard patrol the parking lot at night completely eliminated crime (mugging, car break-ins, etc. that occur with regularity in Wal-Mart parking lots), but they did not put it into effect to save what? $75,000 per year?*

When was this last true? Where is this true? I've been to a half dozen Walmarts in North Texas which, I believe, all have security patrol in golf carts or old sub-compacts. At least the three I frequent do.

Radix··on Ask HN: What's your favorite TED Talk?
Wow, that's a very good talk. He's a bit of a bleeding heart, but in such a way, that it's clear to me he couldn't be as effective as he is if he wasn't. There is also a lot of implication on what makes a good talk here. Thanks.
Radix··on Ask HN: what would you like to see occur in the next 18 months?
According to what law? There should be no reason a doctor with a new practice should need to keep paper copies of their charts. Remote backup copies yes, though I don't know the rule here, but not necessarily paper copies.
Radix··on Penny-Arcade TV on chronic anxiety and antidepressants
I hope you were able to find something that helped. It sounds like you might have been.
Radix··on Learn Python The Hard Way: a new book by Zed Shaw
Why can't you simply deride the language while praising the approach. Then the adult can believe you aren't being patronizing, maybe the book is, but the book is an effective way to learn. The teenagers can run through it in a short time (or read through it if they should be reading another book), and the adults will be fine. Have you heard how many adults say "oh I'm not very good with computers"? What's there to be good with?

Not that the book is worth derision, just as a tactic for those who take themselves too seriously.

Radix··on Video Games are already art, Mr Ebert
When you put it that way I agree with you. But I don't believe art is just in the eye of the beholder. I believe there is a web of definitions for art that all overlap. Great Art is art that mostly agreed by everyone that it is great art. People the world over converge to believe a certain symmetry and proportion makes the most beautiful face. In the same way I believe there is a shared inclination for what is Great Art [1]. But I don't know what it is, and challenge you to define it, because it's a little different for everyone, particularly subject to their perspective.

Let's consider person A and person B. Both A and B see and consider derivative art X' separately. A thinks: there's nothing original here. She's already seen art X. B thinks: wow, how interesting. B has not seen art X and so the uninspired derivation is still interesting.

Similarly, I think the Mona Lisa is a reasonably accurate painting of an unattractive woman. There is nothing beautiful or intrinsically interesting about it. It's due to POV. In fact, each of your examples in the OP is a different perspective. A different reason to consider something art. If you had a stricter definition I don't see how you could change perspective so easily.

I actually reduced all words defined on emotions to being subjective. I don't think this causes a problem. I don't see this as doing art injustice. Saying it is just subjective just gives us a spot to start from.

(Oi, now I don't know if I made sense.) [1] There was a PBS like program on the BBC one night that discussed some research about this.

Radix··on Video Games are already art, Mr Ebert
I think yours will be the best comment on this article.

The trouble with this discussion is people keep attempting to define objective attributes of art. But art doesn't have objective attributes; they are all subjective. Art is a feeling we get when we look at something others call art. We see three paintings, all "art", and two of them give you a certain feeling, so you call it "art" and suppose they feel the same about the third painting. And there it is. You now have an idea called "art" to develop.

It is in this way that our idea of art overlaps with each others, appearing to be the same from a distance, but irreconcilable at proximity. This is why this concept is so fuzzy and difficult to sketch out. We really do need to experience art before we can believe it as art. So, Mr. Ebert's right. Video games aren't art - to him.

Radix··on Hackers Stole Source Code of Google's Global Password System
That's a disingenuous way to say c is a fine language for ssh.
Radix··on Tips for Successful Self-Learning
You know, though I agree, I think this is a POV issue. Some people believe one side and merely understand the other.

Consider a person who both wants to be a doctor, because they admire the direct nature of a doctors work, but they don't enjoy people themselves. And, also wants to be an engineer because they find it all more interesting and valuable, but they never particularly liked math. Depending on the person one choice will be more desirable and will be easier to learn motivation for.

Radix··on Video Games Can Never Be Art
I hear the argument and it is sound.

I believe it isn't. I appreciate Michael's summary because it shows where Ebert's blind spot is. (I think you get it though.) Games allow you to be pulled into stories better, or at least differently, than movies. More like novels than movies as you find yourself putting more into the story than you're given, or as in Bioshock you adopt the character as yourself and wonder what do I really think about Ryan? He seems okay to me, but I'm not sure about Atlas. The story is about as artistic as a sequel to Atlas Shrugged could be.

Then there is the idea some games contain art. Donkey Kong 2 isn't a game I would claim to be art, but Stickerbrush Symphony is one of the finest levels in any game I've played. The experience of bouncing from barrel to barrel with this beautiful music and environment... I'm not talented enough a writer to explain. The music and scene are the lines in those cave paintings.

Ebert's hung up on the word game and can't see those moments frozen in time. And without playing the games and giving himself over to them he won't be able to. The over riding purpose isn't the game play, it's those moments in time where you don't just understand the story, but you believe it.

Radix··on A Chrome Extension for HN
Thanks, I've been wanting this feature. It's good I like it.

I'd rather the color of the friends names be the same orange as around the Y in the logo; it looks brighter on my monitor. And, I wish friends posts on the main page weren't quite as dark, and possibly not bolded. There, but more subtle.

Thanks again.

Radix··on Say the unsayable: countries get the HIV epidemics they deserve
Yes, I completely agree with you about seeing things from the church's perspective. What I intended to mean is that, post marriage, denying birth control takes it out of the public conscious, and possibly the stores, as an option. I disagree that they would be saying: don't, but if you do... Because I disagree with their stance on birth control on their terms, or at least part of their terms. And believe they ought to claim that abstinence and fidelity is how christians should behave while making no claims about birth control.

Specifically, I disagree with their interpretation of the passage about the man spilling his seed. It wasn't worth death because he spilled his seed, but because he deliberately deprived his brother of a child, rather than simply being infertile as other men who failed to father children were.

[edited]

Radix··on Say the unsayable: countries get the HIV epidemics they deserve
The Catholic church condemns all birth control, including for married couples, if I understand correctly. This is why they hold some guilt. I don't see any problem with backing abstinence as the proper form for premarital birth control, denying it in all situations mean those who fail to maintain abstinence won't feel social pressure to use birth control, and, guessing, there will be a lower likelihood of easy access birth control.

Church argument: Contraception is "any action which, either in anticipation of the conjugal act [sexual intercourse], or in its accomplishment, or in the development of its natural consequences, proposes, whether as an end or as a means, to render procreation impossible" (Humanae Vitae 14). This includes sterilization, condoms and other barrier methods, spermicides, coitus interruptus (withdrawal method), the Pill, and all other such methods. http://www.catholic.com/library/Birth_Control.asp

I don't follow the church's argument, but crimes against humanity? That's just silly. So why are yall down-voting him?

Radix··on Math is not linear, so why do we teach it like that?
What do you mean when you say they don't understand fractions?
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