pgwhalen

42 ms·

511.
by pgwhalen 6y ago
> go really got this right It's also exciting to see that Java has taken the same view, and is well on its way towards delivering it ( https://wiki.openjdk.java.net/display/loom ), or even improving on it ( https
512.
by pgwhalen 6y ago
I wouldn't call that "buried in the acknowledgements section." I wish more software projects would present themselves in this way actually. Inevitably everything is built upon prior art, so it makes sense to say where the i
513.
by pgwhalen 6y ago
Despite the your downvoters, there is good evidence to suggest we are already doing that in the US. According to the CDC, for the week ending in 5/9, there were more COVID19 deaths than there were "excess" deaths. https:&#x
514.
by pgwhalen 6y ago
I know many others are thinking it, so I'll be the one to say it. Obviously the US is different from China. In China, this women would be dead and no one would know her name, or she wouldn't have spoken up in the first place be
515.
by pgwhalen 6y ago
Isn't this the ultimate problem of corporate leadership though? You have basically four options when making complicated decisions: - lie, by saying there is no discussion - omit, by not saying whether or not there is a discussion - di
516.
by pgwhalen 6y ago
Sorry I can't edit, I reformatted the bullets below: - Buyer wants to buy 100,000 shares at $100, but no single stock exchange (there are 13 in the US I believe, soon to be 14) has that many shares available at that price. - But there
517.
by pgwhalen 6y ago
I haven't read Flash Boys since it came out, but I'm pretty sure it doesn't actually inaccurately describe how latency arbitrage works the way you just did, it just blurs together similar concepts enough to create confusion
518.
by pgwhalen 6y ago
I'm not totally sure what you mean by "hedge the inventory risk." How would you accomplish that? You can reduce your position size but that's not hedging, it's just reducing your exposure in the first place. You
519.
by pgwhalen 6y ago
I work in the industry, have read Flash Boys, and am aware of how misleading and occasionally false the book is. It's always disheartening to see someone be so sure of themselves while also being incorrect. Your metaphor is inaccurate
520.
by pgwhalen 6y ago
I agree that _normalized_ is a more precise term for what I'm describing, I only used relational because contemporary discourse seems to favor that term in these kinds of discussions and seems to imply a high degree of normalization. &
521.
by pgwhalen 6y ago
>You will more or less have to write a full-fledged DBMS in your application code. Yes, but only if your data is highly relational, and needs to be operated on in that way (e.g. transactionally across records, needing joins to do anythin
522.
by pgwhalen 6y ago
Your intuition is good, I think it's the terminology/semantics that are causing you confusion. What you're describing is a valid way to make money as a trader, but most people don't call it market making. The wider you
523.
by pgwhalen 6y ago
It's interesting the way you connect quoting with wider with lower profits. In a vacuum, clearly the opposite is true. But you're leaving out the part that you only stand a chance to trade and therefore profit if you have the
524.
by pgwhalen 6y ago
>It's basically eavesdropping or civilian wiretapping, only done at scale and with the leverage of millions of dollars I don't think anyone on hacker news would bat an eye if your comment said "Ads are problematic" be
525.
by pgwhalen 6y ago
OpenHFT is actually known as "Chronicle" now. Chronicle used to refer to a specific library under the OpenHFT umbrella, but a few years ago it was all rebranded to be Chronicle. https://chronicle.software/
526.
by pgwhalen 6y ago
The general thinking is that 99% of code at even an HFT doesn’t have to look that funny, so it might make sense to write funny looking java for the 1% that does so you don’t have to fragment your codebase and talent pool.
527.
by pgwhalen 6y ago
Stock gives you a legal claim to a portion of the assets of a company, which as you point out, manifests itself quite clearly during a liquidation event like a dividend payment or an acquisition by some other entity. But tt shouldn't
528.
by pgwhalen 6y ago
It seems to me like they're not trying to bring on-prem to the cloud, and that's very much the point.
529.
by pgwhalen 6y ago
This comment always shows up and I find it strange. Surely engineers can realize that while "real-time computing" has a strict definition, the phrase "real-time" has much broader meaning and it bumps up against the soft
530.
by pgwhalen 7y ago
That as a distinction between friends and acquaintances isn’t necessarily crazy, but it certainly is not how the word friend is used in practice, so this is a weird thing to insist upon.
531.
by pgwhalen 7y ago
Great comment, thank you very much. As the Fed is not actually buying stocks, can you explain the mechanism by which its actions are preventing the stock market dipping by another 1/3 or 1/2?
532.
by pgwhalen 7y ago
Ah fair, I was assuming office space but obviously “commercial” means a lot more than that. It seems worth diving office and retail markets though, I can’t imagine there’s much overlap.
533.
by pgwhalen 7y ago
Source for that? I’d be curious what the top ten are.
534.
by pgwhalen 7y ago
He really does love it in an intellectual sense, which is an infectious passion that is hard to find in an industry where many are optimizing just for financial success. As someone who accidentally got into finance as a software engineer, h
535.
by pgwhalen 7y ago
I'm a daily reader of Matt Levine for probably four years now and I have to admit I've come to precisely the opposite conclusion about how he writes. He points out quirky situations that may appear superficially stupid, but in re
536.
by pgwhalen 7y ago
What is the “wash your hands meme”?
537.
by pgwhalen 7y ago
Just because it's "normal" doesn't mean that it's not a crash.
538.
by pgwhalen 7y ago
The market is still very much driven by humans; the computers just help out, to varying degrees. The idea that computers are trading unattended is a myth that I hope would die.
539.
by pgwhalen 7y ago
That in no way solves the problem though, it just makes it ever so slightly less likely to happen.
540.
by pgwhalen 7y ago
Completely agreed. I find my jq answers there more than anywhere else, and I am continually amazed by its balance between accessibility and thoroughness. I would also say though that this cheat sheet looks great as well - cheat sheets absol

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