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princeb

1,006 karma · joined January 5, 2013

algorithmic trade execution

applied math.

uchicago '12

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princeb··on The emergence of heat and humidity too severe for human tolerance (2020)
https://www.wbgt.sg/allstations
princeb··on The emergence of heat and humidity too severe for human tolerance (2020)
i probably have a comment somewhere recently, but singapore is already in WBT >35 conditions in the day. it eases to around 30 at night or when rain falls.

as long as power is running, it's actually fine in this country, but that's because we've designed our living space around the heat. it is entirely possible to never be exposed to the sun in a normal day in the life of a working resident here if you stay in the right neighbourhood, and this includes the daily commute, hobbies, physical activity, going out for drinks etc.

more and more of the country is being built underground and more and more of our air is becoming conditioned. this is the arcology of the future and it is somewhat pleasant.

edit: actually i think our infrastructure was built around protecting us from the harsh and unpredictable tropical thunderstorms and the protection from heat turned out to be a nice bonus.

princeb··on I'm reading the FT and WSJ from 100 years ago each week leading to 1929
> The US and Europe should study the case of Japan very closely these days.

but they do? bernanke was a scholar of japan's central bank policy.

princeb··on South Korea: The only middle power of its kind
> They buy goods and services

the wonder of economic development is that as a country's quality of life and wealth increases, consumption increases.

the typical american probably consumes about 4000x as much energy as the typical DRC. we still have a long, long way to go before we can accommodate the whole world living like an american.

even as population growth stalls, or even reverses course, the ability of humans to keep expanding its appetite for the finer things in life can never be quelled.

princeb··on The vital art of talking to strangers
> When literally everyone of all political stripes attended the same churches

"It is appalling that the most segregated hour of Christian America is eleven o’clock on Sunday morning" -MLK

princeb··on Young, Dumb, and Broke: Why Outdoorsy Types Suck at Money
> was able to apply things she learned from financial management books

some people learn this early (the author's friend who grew up poor), and some people learn this late (the author), and some people never get a chance to learn this lesson, ever (not mentioned, the resort bums who reach 40 years old full of sports injuries, zero savings with no future and no more ability to ski).

in any case, the author seems self-aware enough to know that there will be comments on the internet like yours. she expresses remorse for having gone through this path on crutches. at least she has a story to share. someone who "retired" early from a corporate finance job with a couple of million in investments (whose life the author was only a few decisions away from), goes out and finally lives his dream never having lost anything is about as uninteresting as a trust fund kid exploring the world.

princeb··on Places Are Increasingly Getting So Hot That People Just Die
Singapore is already completely inundated in severe WBGT conditions: https://www.wbgt.sg/allstations

thankfully, much of the population are within easy reach of conditioned air, either their home, office or an indoor mall. many parts of the shopping district are connected underground, so that people don't have to over-expose themselves to the climate to get from place to place.

we've not been able to terraform our habitat, but we've been able to create sufficient pockets of habitable spaces for us to continue functioning as a society.

it's always a bit of a fascination for me. soon strenous outdoor activities in singapore will be completely impossible, and maybe, in the near future, even idling outside will be a risky endeavour. this feels almost dune-like, except frank herbert never thought lethal humidity would be the other way around.

princeb··on Fake Tesla, Apple stocks have started trading on blockchains
skimmed the article - there's apparently a creation/redemption mechanism similar to ETFs.

settlement is always a mystery to me in crypto so i can't weigh in here. how do you guarantee delivery of the physical for units of the crypto that's inked on the blockchain.

princeb··on Software is eating the car
Teslas look like Kias.

this was a big thing in the early 10s when electric cars looked like i3s and twizys. everyone wanted a normal looking car and tesla was the first one to make a normal looking car.

now priuses and leafs look normal and tesla is making cybertrucks.

princeb··on Being Poor (2005)
surprise, extremely poor people know exactly how much things cost.

they know their bank balances down to the cent.

princeb··on Poor in Tech
this actually reminds me of an article i read on nyt some time ago, about poor college students or first gen students in top colleges.

the parents were invited to the school to meet the faculty and the parents who were college educated or those went to the same type of schools understood the song and dance - the mingling with the adminstrative staff, the dean of students, the professors and lecturers - and the parents who were not educated or were part of the lower class didn't know what to do, so they hung out with the cafeteria staff, asked the cafeteria staff to take care of their kids. those were the people their families and relatives knew and understood.

and the first gen students also understood that they belonged to the same social strata as the cafeteria staff, and things like office hours or asking for help from the professors or the TAs were something that they could not possibly be entitled to.

princeb··on Nvidia cripples cryptocurrency mining on RTX 3080 and 3070 cards
on contrary, miners tend to run gpus undervolted and underclocked for efficiency. gamers tend to run gpus overclocked (and sometimes overvolted) for performance.
princeb··on Reasons some languages are harder to learn
> Personally i think getting the tones right is the most important part of being understood in Chinese

yea.

it really doesn't matter where you are from, the UK, the US, Japan, Korea or Hongkong. if you can't get the tones right, you will be misunderstood. If you are of Chinese heritage (like the HKers), you will be viciously mocked.

princeb··on Time flies in Google Earth’s biggest update in years
the classic scifi trope of an advanced extraterrestrial race is one that is able to not merely ensure its existence but also develop and advance itself rapidly through aggressive intergalactic colonization and resource extraction.
princeb··on It’s Time for Real Time Settlement
edit: immediate settlement is profoundly beneficial for a brokerage. imagine a single trade on the robinhood app, there is counterparty risk between the retail trader and rh and there is a separate counterparty risk between rh and the marketmaker. the two risks perfectly offset at the point of trade, but deteriorate as the market moves further away from the trade price. over several days, the loss probability can become completely lopsided. under instant settlement conditions, the counterparty risk is neutralized immediately.

as a side note, the ficc (which is the fixed income part of the dtcc) already does intraday matching. this is not, as i understand it, exactly settlement, but a pure flow brokerage, lets say, can net down their two-way exposures to reduce margin. this mollified the margining requirements surge in march 2021 when gov bond vol increased 3-4x.

princeb··on It’s Time for Real Time Settlement
> I'm surprised the CEO of a brokerage is advocating for it.

settlement is a necessary but undesirable part of the business of a brokerage, because it locks up capital, which is costly, for a business model whose margins are shrinking rapidly. it used to be that brokerages could earn something from the overnight repo on the balance sheet in order to compete aggressively on fees but nowadays overnight rates are so low and zero-cost execution is the cat let out of the bag. maybe prime brokerages can comfortably rely on the bank's overall B/S to manage this risk but specialist and retail brokerages are all aggressively shrinking capital to stay competitive at the cost of not doing business on days like these. how much is robinhood paying for drawing down those credit lines over the last week just to tide over the 2-day mismatch in trading and settlement? how close was it to getting stopped on doing business in all the other tickers that aren't GME and AMC? I honestly think robinhood would rather not have done that wsb business at all.

princeb··on Food Grammar: Unspoken rules of cuisine
yes. the japanese word for the hamburger is hanbaga, which is a distinct word from hanbagu. hanbaga is as different from hanbaga as macaroons are from macarons.
princeb··on Food Grammar: Unspoken rules of cuisine
> never mix strawberries and shrimp

fried prawns in mango puree and sweet mayo is a fairly popular dish in parts of china. prawns in honey wasabi is another sweet variant.

princeb··on Gig Workers Have Nowhere to Pee (2020)
in finance people joke about the 'broker's bottle', which is what the sales people use under the desk if clients and markets both require their non-stop attention.

i mean, it's just a joke, nobody really has these in an air-conditioned office, and these desk workers are generally still pretty well taken care of, all things considered. by the time one is 5 years in, one should be able to go 12 hours without ever leaving their chair, it's just part of the on-the-job training.

princeb··on Myopia treatment 'smart glasses' from Japan to be sold in Asia
https://www.nature.com/news/the-myopia-boom-1.17120

> In the early 2000s, when researchers started to look at specific behaviours, such as books read per week or hours spent reading or using a computer, none seemed to be a major contributor to myopia risk

> Rose's team tried to eliminate any other explanations for this link — for example, that children outdoors were engaged in more physical activity and that this was having the beneficial effect. But time engaged in indoor sports had no such protective association; and time outdoors did, whether children had played sports, attended picnics or simply read on the beach ... what seemed to matter most was the eye's exposure to bright light.

if your child loves watching tv, bring the ipad to the park and make her watch it outside.

princeb··on An experiment in teaching a language without relying on translation
i would imagine most private language learning schools use a program where they have the first couple of classes - e.g. the basics of reading and writing the script, introductory phrases - in the student's native language before moving directly into teaching with nothing but the target language. my foreign language teacher used a lot of pictures, drawings and charades to get an idea across, if simplification into more basic words failed to do the job.
princeb··on Mercedes-Benz unveils its 56-inch ‘Hyperscreen’ display
mbux responds pretty quickly for me, it's carplay that seems to be really fiddly for some reason.
princeb··on How the New Yorker Fell into the “Weird Japan” Trap
> Demon Slayer

yes.

don't know if OP is referring specifically to some anime or anime in general but the 3 of the top 5 grossing films in japan are animes and animation is a fully developed medium for story telling of all ages.

if native japanese don't know about kimetsu i guess it's the same way my parents have definitely not watched a single marvel film, and i'm not sure if they are even aware of their existence.

princeb··on The Airbnbs
> I would suggest that it is worth a lot

this is not a particularly scalable advantage. if you plan on reaching every single corner of the global market, what does customer proximity mean? if you have to have an office everywhere you do business in, is it really a tech driven business or are you just doing bespoke sales? what's the cost of every additional dollar of revenue?

princeb··on Undergraduate Math Student Pushes Frontier of Graph Theory
instead of breaking new ground in statistics, i'm using 100% of my brain's ability to add, minus, multiply and divide to squeeze another 0.003 bps in trade execution.

i sleep soundly at night knowing that there are guys who are way smarter than me doing even sillier things than me.

princeb··on Ditch Excel and Use Julia Data Frames
> If you cannot do a one click install

corporate IT security policies very often block installs of any kind.

princeb··on Ditch Excel and Use Julia Data Frames
you can do this with pivot tables. if your database has more than 1m entries you can do some preprocessing with powerquery.

you don't even have to learn a single line of new code, if you've never coded before. you only need to know how to point and click with a mouse.

and the best thing is, you can take whatever you've done and send it down to whoever happens to have installed Excel on their machine, which, in a corporate environment, is everybody. Don't need to set up a new programming environment + dependencies.

princeb··on Airbnb S-1
this is an amusing question actually.

is cme group a tech company? it is literally marketplace technology. eurex and xetra, nasdaq, nyse, bats, lse all those guys as well.

if you want to go a bit further, jpm, morgan stanley, goldman, barclays and so on are also tech companies, since they're one layer over all these marketplace tech companies, but with their own internal marketplace technology on top of it.

anyway, it's all very silly and meaningless categorization.

princeb··on Attention Is My Most Valuable Asset for Productivity as a Software Developer
unlucky me i guess.

my physio basically said some people are born with better biomechanics and better structural strength for competitive lifting than others and i'm just not one of them.

if i can get back to at least a 400 lb DL i'd be pretty happy.

princeb··on Attention Is My Most Valuable Asset for Productivity as a Software Developer
i have an l5-l6 l6-s1 hernation from deadlifting.

it's a somewhat similar story across some of my friends who i deadlift with.

a number of of powerlifters we follow on instagram are on regular cbd oil therapy. i'm on lyrica and a truckload of painkillers every day. we still go out and do it. grit your teeth and grind through the pain.

i don't do it as much anymore after i realized that i'm killing my future quality of life for absolutely no financial gain - i'm not selling instagram views, not selling training or equipment and things. but for a long time it was all vanity. none of it is necessary for sitting properly at a desk.

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