Hacker News: hechang1997

New comment by hechang1997 in "YouTube takes down the Ig Nobel show because of a 1914 recording"

hechang1997 — Tue, 14 Sep 2021 06:32:03 +0000

It's YouTube that's the perpetrator of the tragedy of the commons here. There must be a mandatory expiration of any intellectual property into the public domain after a set amount of time and/or after the owner died and the state should first and foremost protect the intellectual property of the public domain, that is, prevent any party from claiming it exclusively and punish any offenders.

New comment by hechang1997 in "The Largest Gypsy Ghetto in Europe – Stolipinovo, Bulgaria (2016)"

hechang1997 — Mon, 16 Nov 2020 03:57:55 +0000

I would go so far as saying people are born racist and can only grow out of it.

New comment by hechang1997 in "Let’s Build a Global Power Grid (2015)"

hechang1997 — Tue, 20 Oct 2020 11:08:53 +0000

Not sure how this could work geopolitically. You need to able to build it to prevent a country from having the ability to hold another country hostage by cutting another country out of the network.

New comment by hechang1997 in "The Problem of Free Speech in an Age of Disinformation"

hechang1997 — Sun, 18 Oct 2020 13:43:43 +0000

Ops... Brain just shortcut

New comment by hechang1997 in "The Problem of Free Speech in an Age of Disinformation"

hechang1997 — Sun, 18 Oct 2020 04:05:52 +0000

Yes, currently the 2nd amendment only guarentees that no censorship comes from government. We need a stronger guarantee: no censorship on any public discourse from any party. Not any kind, because even well intentioned censorship causes problems! Using reddit as an example: suppose there is a subreddit A that discuss news and politics, and the mods ban racist comments. If you are a racist, will you change your racist way if you found your post banned? No, of course not. You would just be indignant and find/make another subreddit B that is more tolerant of racism. The subreddit B is provided the same tools subreddit A uses for censoring racist posts, and abuse these tools to censor any voices that argue against racism. You can no longer be convinced to abandon racism because you are stuck in your comfort zone and anyone who argue against racism are just SJW or special snowflakes in your eyes and their opinions are automatically dismissed by your brain.

New comment by hechang1997 in "Swift Algorithms"

hechang1997 — Thu, 08 Oct 2020 11:48:00 +0000

I saw posts on r/rust talking about making a rust-like language for non system programming. I think Swift fits exactly that purpose, only frustrated by Apple giving it Windows support a decade after it's creation.

New comment by hechang1997 in "Rust Starter Kit 2020"

hechang1997 — Tue, 06 Oct 2020 04:31:00 +0000

That depends though. In Java/C# dereferencing a null reference is a runtime error and you can pinpoint exactly where it happened. In C++/Rust, dereferencing null pointers is undefined behavior since the compiler makes assumptions that a dereferenced pointer cannot be null.

New comment by hechang1997 in "On the destruction of America’s best high school"

hechang1997 — Tue, 06 Oct 2020 04:03:37 +0000

Agreed. I think schools that turns bad students into good ones deserve more funding and publicity than schools that turns good students into excellent ones.

New comment by hechang1997 in "American sued in Thailand over negative Tripadvisor review"

hechang1997 — Mon, 28 Sep 2020 03:44:22 +0000

The law is unjust. The anti-defammation law was used to stifle press freedom and suppress journalists. It doesn't matter whether it's lawful in Thailand or not, freedom of speech without the fear of persecution is a part of the International Covenant on Civil and Political Rights. (Whether you think it has a legal basis or not, it's the only thing we can look up to when authoritarian governments can pass whatever stipulation they want and call it legal.) In this case, I believe the owner of the resort has no ill intention, however, it is using an unjust instrument to inflict a questionable punishment on other people.

New comment by hechang1997 in "American sued in Thailand over negative Tripadvisor review"

hechang1997 — Mon, 28 Sep 2020 03:24:52 +0000

https://en.tripadvisor.com.hk/Hotel_Review-g580110-d594766-R...

Here's the resort in question.

New comment by hechang1997 in "Tor Browser 10"

hechang1997 — Thu, 24 Sep 2020 01:08:44 +0000

Not in China. Please use a forward proxy if you were to use Tor in China.

New comment by hechang1997 in "JDK 15"

hechang1997 — Wed, 16 Sep 2020 14:12:56 +0000

I used it quite a bit for simple scripting before I learned python.

New comment by hechang1997 in "Japan on Track to Introduce Flying Taxi Services in 2023"

hechang1997 — Sat, 05 Sep 2020 13:44:47 +0000

If you use electric motor, the noise of an internal combustion engine can be eliminated, although the propellers themselves make huge noise too.

New comment by hechang1997 in "A step towards new nitrogen products"

hechang1997 — Mon, 24 Aug 2020 10:35:36 +0000

I think the article is talking about capturing inert N2 from atmosphere directly with benzene, not about nitrogen pollutants like NOx.

New comment by hechang1997 in "Ammonia as a fuel for compression ignition engines"

hechang1997 — Sat, 22 Aug 2020 15:17:03 +0000

You can also make it with natural gas and capture the CO2 produced.

New comment by hechang1997 in "UTF-8 Everywhere"

hechang1997 — Tue, 14 Apr 2020 19:31:38 +0000

That complexity comes from the fact that you are using non ASCII characters. UTF8 is a superset of standard ASCII. If you are using only standard ASCII characters, they're exactly the same thing.

New comment by hechang1997 in "Two Years with Rust"

hechang1997 — Tue, 24 Mar 2020 05:34:39 +0000

> Also the whole language suffers from being a weird mix of C-like statement syntax and FP-like expression syntax

I quite like this though. All other expression based languages like MLs and Haskell use indentation, making it very hard to parse. To me, Rust's syntax allows very granular control. I wish more things in the language can become expressions, like the let expression, for/while loop.

New comment by hechang1997 in "Two Years with Rust"

hechang1997 — Tue, 24 Mar 2020 04:52:14 +0000

I don't think you can have shared IPC memory in rust. You have to use message passing. Of course you are on your own completely, and there will be weird logic bugs when you mess it up. However, there won't be any memory corruptions.

New comment by hechang1997 in "Rust 1.42"

hechang1997 — Sat, 14 Mar 2020 02:15:31 +0000

I found the "Too Many LinkedList" tutorial is very helpful. Try to follow the tutorial by writing your own code.

New comment by hechang1997 in "Does memory leak? (1995)"

hechang1997 — Sat, 22 Feb 2020 18:36:00 +0000

Isn't Ada already used in areospace industry?