dsacco

44 ms·

331.
by dsacco 9y ago
No, using numpy would be analogous to a simple formula. Doing it without numpy requires actually understanding what’s going on. It’s a filter that theoretically allows false positives (which is why you continue with other questions), but it
332.
by dsacco 9y ago
> I studied math in undergrad so one of my requirements is "knows more math than me". What kind of questions are you asking to ensure that they’re correct when they’re speaking about math you don’t know?
333.
Students Have to Suffer (2016)(usamo.wordpress.com)
2 points by dsacco 9y ago|0 comments
334.
by dsacco 9y ago
The commenter isn’t trolling, you’re just being incredibly literal in your interpretation and responses, so much so that you’re being obtuse. He said “your feelings were hurt” because you said it’s rude - you don’t need to start a diatribe
335.
by dsacco 9y ago
The author doesn’t gain anything, it’s entirely to help the reader understand their own readiness for the material. It’s not rude, it’s straightforward and matter of fact . If you don’t meet the prerequisites, you should avoid the materi
336.
by dsacco 9y ago
Based on your examples, the "antisymmetry" of luck has much more to do with the probability of events than it does with the societal connotation of luck. You're more likely to get hit by a car than you are to be safe if you c
337.
by dsacco 9y ago
> Playing around with it with a program, and seeing what happens, you get a hands-on experience that no amount of ..abstract generality can replace. That’s not really correct. I think we’re talking about two different things. I’m not s
338.
by dsacco 9y ago
Hah. This is cool. I’ve become so used to reading papers with a footnote that states something about an NSF grant being used to support the research that I was initially surprised when I didn’t see it here. Then I realized what I was readin
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by dsacco 9y ago
I think your question is underspecified. What are your concrete goals? What kind of mathematics do you want to learn, and how do you want to apply it? Given that information we can make more prescriptive suggestions. As stated, your quest
340.
by dsacco 9y ago
I don’t think that really makes sense. Most mathematics cannot actually be learned by programming. They’re just different things. You can illustrate some mathematics (especially set theory and discrete math) with code, and you can implem
341.
by dsacco 9y ago
This is good. I think two principal components should be emphasized when studying mathematics. 1. Proper preparation. There are textbooks at even the graduate level which have no formal prerequisites and which are largely self-contained. Te
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by dsacco 9y ago
> That's interesting to hear! I'm going through "Flash Boys" right now, and it (to me at least) paints GS in a pretty negative light wrt their engineering culture. As an aside, if you’re not planning to already, pl
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by dsacco 9y ago
Cool, thanks for sharing concrete numbers for the discussion!
344.
by dsacco 9y ago
> Actual gold has physical storage costs aka a bank vault etc, those costs must be paid making gold negative sum. You can quantify those costs for the same measures of time that I keep talking about in this thread. As I keep saying:
345.
by dsacco 9y ago
I’m not talking about putting infinite value in a system or exponentially increasing investments. I haven‘t made a case for either of those. I’m sorry, I don’t really know how to express the point more clearly at this juncture, so I guess t
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by dsacco 9y ago
Sure. I don’t think that captures all the economic nuance (you’re just reducing it to a Keynesian beauty contest), but yes.
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by dsacco 9y ago
> If I buy exactly 100 bitcoin style coins on a block chain I can't turn around and sell exactly 100 coins because of in network transaction costs. Making it literally negative sum. No, because the aggregate value of the market is
348.
by dsacco 9y ago
What you’re saying doesn’t make sense, because the price of a single asset is not a closed system - it exists in the market, which is full of variable interactions. Concretely: for any asset appreciating in value, you can earn interest on i
349.
by dsacco 9y ago
> Economics is not zero-sum because of production which is what real investment is tied to, and is where the returns come from. Yes. > Speculation is more zero-sum, but can send useful price signals when tied to an asset that relat
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by dsacco 9y ago
> Ehh, crashing tomorrow or in 100 years is not necessarily different outside of the timing. Yes it is. The frequency of events occurring in a specific measure of time is both mathematically and financially meaningful. In particular, t
351.
by dsacco 9y ago
Trading activity is the same way. Individual pairs of bids and asks are zero sum, but the emergent behavior of the market is non-zero sum (liquidity, price discovery, efficiency, etc). Sure, one trader might lose, but the trade contributes
352.
by dsacco 9y ago
Seeing this on Hacker News again, this time from Bloomberg , is so mind numbingly frustrating. I already contested this story when it first showed up on HN 14 hours ago: https://news.ycombinator.com/item?id=16366754 . But t
353.
by dsacco 9y ago
> Yes. They get to write off equipment, marketing, etc. "It's not like plumbers are working jobs back to back 40hrs a week." In California probably more like 60hrs. Are you just making up numbers? You've asked for s
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by dsacco 9y ago
The top end of engineers and researchers in artificial intelligence earn magnificent salaries. That domain is not, itself, the top end of software engineering , it's a specialization of it with its own salary track. You aren't ac
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by dsacco 9y ago
> You could also just become a plumber and probably make $300k a year[i] (~150$/hour). ...how many plumbers do you personally know? The reason everyone in this thread is pushing back against this is because the suggestion is ludic
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by dsacco 9y ago
> At UChicago CS didn't have a mandatory core of statistics or math classes Not even Calculus or Linear Algebra? Do they take Discrete Math?
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by dsacco 9y ago
They can’t, and don’t. The secret is that experienced PhDs (mostly) dominate the high end of “AI” hiring, but don’t have much title or departmental differentiation from people who are “only” specialized software engineers in top tech compan
358.
by dsacco 9y ago
This article is atrocious. It has a clear agenda motivating its publication that is simply at odds with facts. 1. This is not a vulnerability with Telegram. The headline is deliberate clickbait, and the article’s Telegram-centric presentati
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by dsacco 9y ago
> Almost every interviewee has a git(hub/lab) account with code they're written, that should suffice to determine if they can FizzBuzz. No, almost every interviewee does not have public code, and what's more, that should
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by dsacco 9y ago
> It is condescending. Asking people to do FizzBuzz indicates that you expect a large portion of your candidates to be completely clueless. That's not a good message to send. I think it's a fairly honest message. Regardless o

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