HNHacker News
TopNewBestAskShowJobs

kenfox

27 karma · joined September 3, 2014

submissionscomments
kenfox··on Casey Muratori – The Root of the Root of All Evil – BSC 2026 [video]
The computers at the time had very little ram. The IBM System/360 didn’t get 1MB until 1968. I suspect a lot of programs were I/O bound just to be able to work at all. Most modern engineers cannot conceive of doing anything useful with 64KB and I think it’s a mistake to project modern practices 50 years into the past.
kenfox··on Why agents are bad pair programmers
System prompts themselves have many contradictions. I remember hearing an Anthropic engineer (possibly Lex Fridman's interview with Amanda Askell) talking about using exaggerated language like "NEVER" just to steer Claude to rarely do something.
kenfox··on Corporation for Public Broadcasting Statement Regarding Executive Order
I'm not sure what article about looting is being referenced, but NPR did interview author Vicky Osterweil about her book "In Defense of Looting". It would be extremely surprising to hear that NPR endorsed looting as a form of protest. The interview was definitely not an endorsement.
kenfox··on When the physicists need burner phones, that's when you know America's changed
I wonder if the low literacy rate is partly an artifact of non-English speakers. The 54% stat seems to come from PIAAC which only evaluates English literacy in the US https://nces.ed.gov/surveys/piaac/faq.asp

The US hasn’t historically had high literacy rates though I definitely agree we are back to McCarthy levels of anti-intellectualism. Probably worse.

kenfox··on Nothing like this will be built again (2002)
Your 10 to 15% figure is total transmission and distribution loss from producer to consumer. If you scale up the transmission distance only, the total shouldn't change much. There are several studies referenced in this course http://large.stanford.edu/courses/2010/ph240/harting1/. Looks like 2 to 3% loss over 1000km.
kenfox··on We Will Never, Ever, Mine the Asteroid Belt
The author assumes we will only ever use raw materials on Earth. There are definitely impractical fantasies about asteroid mining in sci-fi, but the author ignoring the cost of getting things off Earth means the article is just a strawman.
kenfox··on Antikythera Mechanism: An ancient 'computer' that 'shouldn't exist' [video]
Coal and oil formation would not occur due to lifeforms able to digest trees. It would be extraordinarily difficult to reset to those primordial conditions. I don't think an asteroid hit could do it.
kenfox··on Orthodox Privilege
The nuclear family is an American white cultural norm. It may also be a norm for other groups. You are seeing black as the opposite of white and blackness as defined as the opposite of every white norm. That seems pretty extreme; a deductive fallacy even. The infographic didn't say anything about black culture though it would be interesting to see the identical format used to describe black culture.
kenfox··on New Metal-Air Transistor Replaces Semiconductors
A perfect vacuum is a perfect insulator. There are capacitors that use vacuum.
kenfox··on Temperature Anomalies by Country 1880-2017
You think there is a conspiracy to supress detailed global temperature measurements that were taken before 1880? It's interesting that we have ways to estimate global temperature before 1880, but that marks the start of modern record keeping.

It also has the advantage of showing the blip of very high US temperatures in the 1930s. People also complain about bias if those extremes are left out.

kenfox··on The Banana As We Know It Is Dying Again
North America is a large place. There are at least a half dozen different climates. Michigan has excellent variety with apples, peaches and cherries for example, but bananas are limited to Dole or Chiquita's Cavendish. Perhaps the availability of local fruit suppresses demand for banana variety. I've only seen more choices of banana in larger cities and university towns.
kenfox··on Can we get to 350 ppm? Yes we can
The language that scientists have used is significantly less confident than yours (from http://www.projectmidas.org/blog/calving/):

> Dr Martin O’Leary: “Although this is a natural event, and we’re not aware of any link to human-induced climate change, this puts the ice shelf in a very vulnerable position. This is the furthest back that the ice front has been in recorded history."

I interpret those comments as saying it's currently an open research question. Lots of popular press I've read though does leap to there being some link. I think it pays to be open minded here and consider that ocean and polar warming could have an impact on ice shelf stability.

kenfox··on Beyond Objective-C, Beyond Swift
The 2 volumes of authoritative X documentation came from Digital Press. X Window System by Scheifler, Gettys and Newman. X Window System Toolkit by Asente and Swick. If you read further in the acknowledgements that you quote, you'll see them listed as primary sources. My copies take up 3.25" on the shelf.

I know we had a lot of the O'Reilly X books floating around. Nobody ever read them, but we felt weird throwing books away. You're right that they got bundled by vendors--I think HP and Sun eventually bundled stuff too. The bundling decision was probably more about trying to justify insanely high workstation prices than an indictment of the complexity of X.

kenfox··on Beyond Objective-C, Beyond Swift
You are seriously trying to add up all the O'Reilly books and compare that to documentation published by NeXT?

I think I still have my books at home somewhere. They were by Digital Press if I recall.

kenfox··on Beyond Objective-C, Beyond Swift
The X documentation was 2 volumes: 5 inches total. If you throw in Motif, Display Postscript (which came out in early 90s on SGI) and GL, it's still under a foot. I never had NeXTSTEP manuals, but I did have the OPENSTEP box set which was about a foot thick.

I understand the point you are trying to make, but the truth is an expert would find a lot of similarity in those systems. Even today iOS development feels comfortable and similar to the work I did on SGIs in 93.

kenfox··on Visualizing Garbage Collection Algorithms
Author here. That's a nice trick to put the animations side-by-side. Thanks!

I had looping versions of the images, but changed them to stop because it seemed confusing to not clearly see the initial and ending states. Refreshing the page to replay an image seemed to work ok, but maybe not in all browsers?

The github project has versions animating longer runtime programs. They are linked from the smaller images in the blog post and might be useful to open side-by-side when reading the text.