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A Technical Blog Post by a Big Name Expert (expertslastname.com)
314 points by guywhosubmitseverythingbyop 12 hours ago | flag | 42 comments





ex-cto 10 hours ago | link

I disagree with the author. I know he's incredibly successful and right about pretty much everything he's ever said, but I've had some experience in this area and just finished reading through some of the archives and I think his focus is wrong. I'm going to ignore the technical issue and talk about the bigger picture and higher level things than what was said in the blog post. If the OP thinks that the process is most important, it's really about end results. But if he thinks it should be about the end results then he's an idiot for not thinking about the process. I'll weasel in a reference the startup I co-founded even though it's not directly relevant.

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ha43n 9 hours ago | link

No, OP is correct.

* You omitted hist point X.

* You misunderstand point Y.

* Here's point Z you didn't account for.

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curious 7 hours ago | link

Continuing the discussion of point Z, here's an interesting way[1] it relates back to the OP. And here are some unknown facts[2] the OP didn't include.

[1]: http://SomeScientificJournal.com/141421

[2]: http://SomeNewsSite.com/11235813

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curious 10 hours ago | link

> tangential statement

I'm honestly really curious about this. Could you elaborate?

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guru3 2 hours ago | link

Here's a long detailed, objective explanation of everything related to this issue. It's probably more useful than the actual link and it may serve as one of the best efforts to consolidate information on this subject on the entire Internet. If it contains original research only a couple of readers will be qualified to tell. Half the people who upvote this won't understand more than the first two paragraphs.

Edit: I anticipated the potential questions and added more information. Add some graphs and this could be a master's thesis.

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nitpicker 1 hour ago | link

> high-level statement about a relevant side point

Here's how it really works. I'll write a couple paragraphs on all the exceptions I can think of, explaining how you should have said "often" instead of "almost always".

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hurryandreplaceit 2 hours ago | link

I don't know why this isn't at the top.

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rordev 10 hours ago | link

As a Ruby guy, does this really matter for 95% of the world?

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usr32 9 hours ago | link

It matters if you're concerned with performance. Or if you ever want to pass an interview at Google.

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ij3so 9 hours ago | link

I have stuff to say about JIT.

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MyRealName 9 hours ago | link

I have corrections to make about your understanding of JIT. And some interpreter-specific details to share.

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mrpragmatic 8 hours ago | link

I don't understand why Google asks such weird interview questions. They miss out on a lot of talent. I would never hire anyone based on their ability to estimate the number of edges on a grain of sand has after it's been run through a blender.

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uwb4oa 8 hours ago | link

They want to test your mind to see how you think.

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seemskindabitter 2 hours ago | link

I was once interviewed by Google and I didn't like the questions they asked. I didn't get the job, but I probably wouldn't have taken it if they offered it to me.

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It matters in high performance Python.

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I have stuff to say about JIT.

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I have corrections to make about your understandig of JIT.

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scificharacter 6 hours ago | link

It helps you understand what's going on under the hood of your technology stack.

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FrustratedCSJunior 5 hours ago | link

One of the things I like about high level technologies is that I don't have to know.

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guru3 4 hours ago | link

I'm a 30-year veteran of C and Lisp, I've actually written code using butterfly wings, and I have a few things to say about the value of knowing your technology stack.

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Fantastic article. Here's a little bit more about what was discussed. And some real life applications.

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webdev 9 hours ago | link

I know this is off-topic, but does anyone know how he got visual effect X on his blog? It looks very nice.

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jacobwg 8 hours ago | link

It's based off Someguy's CSS project. (https://github.com/Someguy/css-project) It uses CSS3 features not fully supported in all browsers yet. I don't think Firefox or IE properly support it yet.

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bleedingedge 7 hours ago | link

Firefox nightlys does.

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noperspective 5 hours ago | link

> giant snippet

Here's a hyper-anal correction that is itself correct, but doesn't exactly contradict the OP.

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programerdude 4 hours ago | link

I'm a back-end Java developer at a mid-sized company. Any application of this for me?

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argon 4 hours ago | link

Here's a basic higher-level explanation of the subject with just enough random details to sound useful, but... it won't really help anyone.

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randall 8 hours ago | link

Relevant XKCD: http://dynamic.xkcd.com/random/comic/

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LoremIpsum 5 hours ago | link

A big block of text with no paragraph breaks. t seems like the author is trying his hardest to provide something insightful and well-written, and while it seems on-topic it is hard to relate to the original article. None of it looks wrong, but it doesn't seem very informative either. Most people will just skip right over it. There will be a semi-obscure Wikipedia link somewhere in here.[1]

[1]: http://en.wikipedia.org/wiki/Special:Random

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hurryandreplaceit 2 hours ago | link

Hasn't the technology the OP is discussing, which is a cornerstone of 21st century technology, been rendered obsolete by this other marginally-used project started last year?

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B-Con 2 hours ago | link

You are confusing the purposes of those technologies. They are not equivalent.

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trekie 3 hours ago | link

Given that OP is who they are, they're probably right. This guy is a genius.

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asm 1 hour ago | link

Why can't we have more detailed technical stuff like this on HN?

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phpdev 1 hour ago | link

Who's the OP and why do we care about his opinion?

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How can you have visited more then three sites on the Internet and not know who OP is?

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punster 1 hour ago | link

Actually, if you've visited more than 3 sites on the Internet, you've probably used something he designed.

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He started a company related to this a while ago and helped pioneer this field. He's a highly respected contributor to this field and designed X and Y.

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ij3so 1 hour ago | link

How can you not know who OP is?

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artmajor 3 hours ago | link

Why is there so much technical stuff on HN now?

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redditor 3 hours ago | link

Nice article.

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skimmer 5 hours ago | link

I disagree with the title. And based on what I say I obviously didn't read the actual article.

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incredulous 4 hours ago | link

Did you actually read the article?

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