pdovy

9 ms·

31.
by pdovy 7y ago
Ah apologies, I only took a cursory look at his dispatching logic. It looks to me like it supports both modes, but you have to hand roll the dispatching logic if you want to use it at runtime (but he provides an example). If you _really_
32.
by pdovy 7y ago
FMV is pretty neat but there are scenarios where it's not ideal, so I'm not surprised to see it not used in what is meant to be a lightweight high performance library. Notably the fact that the dispatching is done at runtime means
33.
by pdovy 7y ago
Yeah, it seems like this would be better served to be split into two (or more) courses if you're assuming almost no prior knowledge. "Software Engineering" is a pretty ill-defined term, but I'd generally think of it as
34.
by pdovy 7y ago
Regarding the direct listing, I wouldn't view that as a negative - sounds like they had no need to raise additional capital, but wanted to provide liquidity to their investors and employees. They've raised a _lot_ privately, and s
35.
by pdovy 7y ago
Presumably they would make gains in efficiency, but only to a point - if a gallon of gasoline contains 34 kWh of energy you'll always need at least that much to create one, and at 60 kWh/gal now they aren't that far off.
36.
by pdovy 7y ago
Thanks - that makes a lot of sense. I suppose the same issue exists with a large scale up of electric vehicles, so your interests would dovetail with other parties there and hopefully collectively spur grown in renewable generation capacit
37.
by pdovy 7y ago
You've elsewhere quoted 60 kWh per gallon of renewable gasoline. The US consumed 391.40 million gallons per day on average in 2018 [1], and concurrently had generation capacity for 1.153 billion kWh per day from non-hydroelectric rene
38.
by pdovy 8y ago
Yeah, if they can't pull that rabbit out of the hat, it looks a bit bleak. With US MAU's stalled for the last four quarters, they are faced with extracting more revenue from the same set of users - i.e., show everybody more ads a
39.
by pdovy 8y ago
If I'm reading their MAU charts correctly, they have way more MAU outside of the US than inside (82m vs 184m last quarter), not only that but international user growth is relatively strong compared to the US. That said, 94% of revenue
40.
by pdovy 8y ago
Will be interested to see what the standard range pricing ends up being, they would really be on to something if they could make a version of this that is closer to Model 3 pricing. It seemed weird to me that when other car makers are aban
41.
by pdovy 8y ago
There's a great, if a bit cheesy video from FortNine [1] on why motorcyclists can be basically invisible to even cautious drivers due to the way our brain processes information, and I think the same thing would apply for bicyclists. W
42.
by pdovy 8y ago
Seems to me like they are asking the wrong questions here. In my experience people work hardest when they are coming in every day really excited to work on a problem. If nobody is feeling that way towards the product then that in and of i
43.
by pdovy 8y ago
I think this to some extent depends on what kind of software you are interested in working on. From the perspective of someone working as a developer in finance, SF is nowheresville, you want to be in NYC or Chicago, typically. That'
44.
by pdovy 8y ago
Running a race is a good analogy here. Privilege is the equivalent of starting the 100 meter dash 20 meters past the starting line, while someone else starts at zero. You can both work equally hard and achieve vastly different results. I
45.
by pdovy 9y ago
I'd agree with other commenters here that it seems pretty expensive for what you're getting, or at least the value proposition is poorly presented. For example, I don't see any reason why I'd want to pay for this at a U
46.
by pdovy 9y ago
>> i dont disagree with arbitrage and liquidity, and a globally invariant price for goods. i just think HFT isnt really improving that in a meaningful way. i ask you- at what timescale does it stop mattering? thats really what im sayi
47.
by pdovy 10y ago
I think if you're considering AirBnB and a hotel room as essentially fungible products, you're missing some of the value proposition of AirBnB. For me personally, I really hate most hotels because I don't like being lumped t
48.
by pdovy 10y ago
I'll be very interested to see what happens if Uber does decide to go public. Prior to recent events I'd have thought if they did go public they'd almost certainly follow the recent trend of setting up a class structure that
49.
by pdovy 10y ago
Here's an analogous situation - let's suppose you are a buyer in an auction for a car. You're competing with all other interested buyers to get the car, and after a bunch of back and forth, you win the auction. Later, you fi
50.
by pdovy 10y ago
I work in HFT, though we don't deal with Bitcoin. I don't think volatility creates any value, but it can be a sign of market inefficiency if it's caused by a lack of liquidity (demand > supply). A typical market making s
51.
by pdovy 10y ago
Yeah as a transplant Chicagoan I'd have to disagree, on balance our infrastructure is pretty good. CTA works well enough for me to commute daily for the last 8 years without owning a car, and they've been systematically replacing
52.
by pdovy 10y ago
Thanks, definitely going to give those a read. Best of luck!
53.
by pdovy 10y ago
Congrats, that sounds awesome! What are the economics of that business like? I love woodworking (as a hobbyist) but it seems like most people that manage to make a living at it are doing so through volume (e.g., cabinetmakers) vs. somethi
54.
by pdovy 10y ago
> Trading companies, including market makers such as UBS , KCG Holdings and hedge fund Citadel LLC, are willing to compete for retail investors' orders because they are considered "dumb money" that shows the professionals
55.
by pdovy 11y ago
Typically C++, Java or C#, although the technology in the currencies trading world has generally lagged behind say, US cash equities where exchanges are catering more to electronic customers (a substantial portion of the currency trading us
56.
by pdovy 11y ago
Simple latency arb strategies are totally an arms race now, with very high barriers to entry. That does not mean however that latency becomes unimportant - if you are a market maker you're essentially playing the same game in reverse
57.
by pdovy 11y ago
The quality of the questions on Bernie Sanders' AMA were pretty good, but it was informative only because he didn't shy away from answering the interesting questions. One of the Chicago Mayoral candidates did an AMA in the recent
58.
by pdovy 11y ago
Flexibility on work hours and the ability to work from home occasionally. Being able to flex around doctors appointments, errands that can only be done during normal business hours, etc makes life a lot less complicated.
59.
by pdovy 11y ago
It's worth pointing out that this kind of behavior gets people in trouble on a fairly regular basis, what is new is that the DOJ is starting to bring criminal complaints. It's long been the case that the SEC, or in this case the C
60.
by pdovy 12y ago
This is a great rundown. It's worth mentioning though that if you are interested in HFT in particular but not necessarily being a "quant", there are lots and lots of really interesting technical problems to be solved as a pu

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