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jeeyoungk

433 karma · joined October 10, 2012

https://jeeyoungk.com
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jeeyoungk··on How Stability AI’s founder tanked his billion-dollar startup
FTX/Alameda also had unpaid AWS bill of ~single digit millions.
jeeyoungk··on Fair Cake-Cutting
I've been thinking about the cake cutting problem recently, with a bit more "physical world" and dexterity in mind. Even in the two-player version, one can add few more criterion.

* Cutting a cake is a skill; it takes an effort (thus associated cost) and you may not be accurate at cutting it. There may be some error bound epsilon.

* If so, in the traditional "I cut you choose" model, as there are risks associated with cutting (what if you intend fairness, but you ended up with lopsided 49:51 cake due to an error?), one may not volunteer to cut the cake; if so, how can we encourage / compensate one to cut the cake?

* The "skill" can go both ways; it takes an effort to figure out which cake is bigger - even more then the cut itself. both parties may volunteer to cut the cake. if so, how can we encourage / compensate one to be the chooser?

jeeyoungk··on Kepler, Nvidia's Strong Start on 28 nm
I don't think 2.8T market cap company combining with 1.1T market cap company can be called an "acquisition", nor three letter agencies would ever approve such a deal.
jeeyoungk··on Gojekyll: A fast, partially compatible Go clone of Jekyll
Jekyll is notoriously slow even for a very small website, unfortunately.
jeeyoungk··on How Modern SQL Databases Are Changing Web Development: Part 1
Big Data systems (Spark / Hadoop over S3) really pioneered this, as the original MapReduce paradigm had fairly tight coupling between compute and data.
jeeyoungk··on Backward Compatibility, Go 1.21, and Go 2
If your program is short running, then it may be more efficient to disable GC and let the dying process to take care of it all.
jeeyoungk··on H. G. Wells interviewing J. V. Stalin (1934)
JP Morgan
jeeyoungk··on In Defense of Not-Invented-Here Syndrome (2001)
This is a good Joel post, but the bar has moved significantly.

"If it’s a core business function — do it yourself, no matter what". The question is, what is "Core Business Function"?

If you were an internal tech company in 2000s, hosting your own servers was a "core business function", as being a tech company meant that tech was core business function. However, as tech got more sophisticated, the domain of "core function" became more focused per company

Another example is the rise of fabless semiconductor companies. Even until recently, Intel had superior chip design and fabrication capabilities (thus intel's tick-tock strategy). AMD founder Jerry Sanders claimed "Real men have fabs" but AMD's spinoff of GlobalFoundaries look like a genius move now.

What you think of "core business function" is going to change over time.

jeeyoungk··on Launch HN: Needl (YC S22) – Simple search across all your apps
I always found this class of product fascinating, as new ones pop up all the time. I remember...

* Google Desktop

* Grepline / Cue (this is W10)

* ... various other products ...

I feel like for personal users, the product ultimately isn't sticky enough.

However, "enterprise search" feel more viable path especially this is where it becomes more valuable (and where the money is). Also anybody whose working at a large company would need to have some enterprise procurements to sign up for such a service anyway. I'm talking about players like Glean in this area.

jeeyoungk··on Hacker News Title Edit Tracker
I like the latter title better; I can understand the editorial stance because “first” does sound a bit click bait like.
jeeyoungk··on Ask HN: Is it even worth reading news outside of HN?
Find sources you like. Over time I settled with:

- TheInformation

- WSJ

- Economist

- London Review of Books (if you were to call this "news")

jeeyoungk··on Former eBay employee gets 18 months in prison for cyberstalking campaign
So the executives who ordered this are getting away with this?
jeeyoungk··on Terrible programming features from the past
Pipefail is actually relevant here; because the difference between `-e` and `-o pipefail` is whether “on error resume next” is supported for `cmd;cmd` versus `cmd|cmd`.
jeeyoungk··on What it's like to be cancelled
https://scryfall.com/search?q=a%3A%E2%80%9CNoah+Bradley%E2%8...

If you want to see some of his Magic: The Gathering illustrations

jeeyoungk··on Is Dev Compensation Bimodal? (2016)
but on the article it's also pointed out that the compensation isn't the same in London, UK, so it's not just attributed to that.
jeeyoungk··on Porsche Classifier – Identify Porsche models with 95% accuracy
I was excited because I thought this would be able to identify between different 911s.
jeeyoungk··on Does Facebook pay Apple 30% of revenue derived from ads made within its iOS app?
This is different because it's talking about _purchasing_ side of things; you can purchase Facebook ads via the iOS app and Apple has been fairly consistent about digital purchases on its platform.
jeeyoungk··on Furstenberg and Margulis awarded 2020 Abel Prize
This is a fun proof! Thanks for the reference.
jeeyoungk··on Parsing C++ is literally undecidable (2013)
This is possible in almost all language, even Python (!!!) - see the Stack Overflow question https://codegolf.stackexchange.com/questions/69189/build-a-c...
jeeyoungk··on What Working at Stripe Has Been Like
Jack Dorsey is Square's CEO.
jeeyoungk··on Inside Facebook’s Election ‘War Room’
Then put 100 people in the room? 1000? Not sure what's the point of having everyone in the single room, when the entire company is in the single company anyway.
jeeyoungk··on Monitoring 9600 banks at scale
One of the authors here. Thanks for enjoying the article!

Re: AWS. We're not at a point where we are overburdened by the AWS spending. Many things are more efficient with AWS, as we have a fairly small engineering team. We use various different AWS products (Aurora, Kinesis, to name a few) that we are utilizing.

Regarding metrics & percentiles - Yes I agree. 99th percentile is what we try to look at the most, as most other metrics tend to be deceiving.

Regular forums - This is something that we need to improve on as we move forward. The blog post mostly describes the infrastructure we've built, but it takes time and effort to become a metric-driven organization.

jeeyoungk··on The mathematics of Magic: the Gathering (1999)
That's why in most formats lands are considered staples and fairly expensive. Duallands, shocklands, and fetchlands can make your mana base much smoother.
jeeyoungk··on Some U.S. law enforcement agencies are using GrayKey to bypass iPhone encryption
both touchID and faceID are ephemeral and expires after 24 hours (configurable, i think). Unless the device was obtained from the person immediately any hardware hack to bypass them won't work.
jeeyoungk··on Opening the code of our X-Pack features
Agreed. I can't believe how combining Apache and non-apache licensed source code in a single repository is a good thing.
jeeyoungk··on VCG has acquired 500px
I think the grandparent commenter is referencing https://ourincrediblejourney.tumblr.com/

That said, I think this is a bit different than other acquisitions as it is not an acqui-hire and the product (hopefully) will not shut down.

jeeyoungk··on What Teenagers Are Learning from Online Porn
https://reddit.com/r/nofap is a community dedicated for (2).
jeeyoungk··on Facebook is banning all ads promoting cryptocurrencies
Sorry, forgot to add that I don't know any Chinese and I don't have any reason to believe that Facebook thinks that.
jeeyoungk··on Facebook is banning all ads promoting cryptocurrencies
Finally.

I've been intentionally clicking ICO ads so that I get targeted for more ICO ads. It's been interesting.

- Many of them have the most buttery smooth introduction video that was just so compelling to stare at.

- Many has business lines like, "The total market for car loans / social media advertisement / game currency is N trillion...

- The "team" page for them are mostly Russian / Eastern European. Some of them have links to LinkedIn. I looked at their (I believe fake) profiles too. (I don't know why would anybody use their real identity to pull such a thing).

- Some ads are in Korean (understandable, I speak Korean and cryptocurrency is hot over there), some ads are in Chinese including their landing page. Do they expect people to land on those pages and drop money without reading anything?

jeeyoungk··on What are the complex numbers, really?
The ambiguity comes from the definition of i and -i from algebraic perspective. They are two roots of sqrt(-1) and they have indistinguishable properties other than the fact that they are different. I.e. if we live in an alternate world where the complex plane is flipped (j = -i) then there is no way to distinguish this world between the original.

It’s similar to the inherent ambiguity between left and right - the only defining characteristics of them are they are opposite to each other.

Note that 1 and -1 have different mathematical properties (in most cases - in Z/2 they would be equal) that allow us to distinguish. 1 * x = x but -1 * x = -x.

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