Hacker News Reader

ytchon I told the flight attendant "the WiFi isn't working"

Most computer networks 101 class teach how their state machine is designed only.

If you want to know "how to use them in real world", some universities has courses with "System Administration" would be more suitable. or learning the certificate program (CCNP, CCIE, JNCIP and others) materials with their lab.

ytchon San Francisco now at 35% office vacancy rate, highest ever recorded: data

Local government, small business owner are have a tendency to against WFH too:

https://www.cnbc.com/2018/11/13/amazon-tax-incentives-in-new...

> This includes up to $1.2 billion worth of refundable tax credits through New York State’s Excelsior Program based on a percentage of salaries Amazon expects to pay employees there for the next 10 years.

https://www.theguardian.com/technology/2018/jul/25/facebook-...

> Tech firms are known for their lavish meals, but city says it damages local businesses

ytchon GPU advancements in M3 and A17 Pro [video]

Yes, It's my fault. The website uses the same layout with WWDC sessions, so I misunderstand it :/

ytchon GPU advancements in M3 and A17 Pro [video]

I didn't watch too many developer conference, but IHMO the Apple WWDC sessions are fairly easy and enjoyable for learning. especially they provide full transcript.

ytchon GPU advancements in M3 and A17 Pro [video]

It's one of ̶W̶W̶D̶C̶ developer sessions. Some of them at WWDC are basic 101 introduction for rookies.

There are advanced (for me) sessions like:

https://developer.apple.com/videos/play/wwdc2023/10127/

https://developer.apple.com/videos/play/wwdc2023/10042/

Although it's true that they won't discuss at hardware level.

ytchon Gen Z is lonely. Going back to the office may be the cure for some

It's not my job to spend hours commuting to work and make some lonely people happy.

ytchon M2 Ultra can run 128 streams of Llama 2 7B in parallel

It's called Xserve:

https://en.wikipedia.org/wiki/Xserve#Intel_Xserve

But since Apple discontinued Xserve and macOS Server, they seems like don't care about this business anymore.

ytchon Raspberry Pi 5

Thanks for all reply, I guess it's my misunderstanding on the 5V/5A requirement:

https://www.raspberrypi.com/news/introducing-raspberry-pi-5/

> When using a standard 5V, 3A (15W) USB-C power adapter with Raspberry Pi 5, by default we must limit downstream USB current to 600mA to ensure that we have sufficient margin to support these workloads.

Therefore 5V/3A can still boot RPi5, but it cannot provide enough power to its USB-A port. Therefore it cannot use something like 12V/2A, since RPi5 doesn't have transformer circuit on its board.

ytchon Raspberry Pi 5

Out of curiosity, does 5V/5A USB-C changer common?

All of my USB-C Chargers has 5V/3A only.

ytchon Fighting API bots with Cloudflare's invisible turnstile

I encountered a similar problem at work recently. The first thing come to my mind is CSRF. But it can be bypassed by parsing the token in HTML.

Then I found this article[1]. Embedding a challenging with valid time in Javascript, calculating the response by obfuscated Javascript code.

[1] "Bypassing YouTube video download throttling" https://news.ycombinator.com/item?id=37117338

ytchon WiiLink – Japanese Wii channels revived

In some interview, Mr. Iwata said that he want Wii to be a part of living room[1], rather than a game console that may look out of place.

Comparing to other consoles around 2000, He accomplished this goal successfully.

[1] https://www.nintendo.co.uk/Iwata-Asks/Iwata-Asks-E3-2011-Spe...

ytchon Russia Starts Blocking VPN Protocols

For the case in China, they use statistics, entropy of packets (may not an accurate term) and other DPI-like methods[1],

also HN discussions of it[2]:

[1] https://gfw.report/publications/usenixsecurity23/en/

[2] https://news.ycombinator.com/item?id=36531485

ytchon Android is now better than iOS, says head of Instagram

Since he didn't list why and how. I don't know what we can learned from the post.

ytchon Threads 24% likely to overtake Twitter, down from 49% say prediction markets

I use twitter (or mainly TweetDeck) for tracking hashtag, keyword and self-defined list, also no algorithm based recommendation.

Why do I jump to another service that has none of these advantages?

ytchon It's companies' fault we don't want to return to the office

https://www.geekwire.com/2023/seattle-mayor-praises-amazons-...

the news didn't mention about pressure directly, but mayor and interest groups are happy about back-to-office.

ytchon Google uses in-person office attendance as part of employee performance reviews

On the other hand, Google encourage underperformed employee to show up for improving review score.

If they does well, remote work are acceptable since they has some additional score to be deducted?

I guess it means there will have many underperformance co-workers in office?

ytchon Apple to occupy 90% of TSMC 3nm capacity in 2023

It's just my (unprofessional) assumption, but besides CPU and GPU, maybe NPU (AI) still have room for improvement.

ytchon The networkQuality tool on macOS

Personally I found it interesting that:

* TFTP server [1]

* PF Firewall [2]

* pbcopy & pbpaste [3]

are built-in in MacOS.

Here[4] is list of MacOS command line man pages, some interesting tools can be found there.

[1] https://rick.cogley.info/post/run-a-tftp-server-on-mac-osx/

[2] https://iyanmv.medium.com/setting-up-correctly-packet-filter...

[3] https://osxdaily.com/2007/03/05/manipulating-the-clipboard-f...

[4] https://ss64.com/osx/

ytchon Taiwan is running low on engineers

Meanwhile some employers complain that paid parental leave costs too much.

Don't they know that young engineer need to be raised by parents from baby?

ytchon Passkeys: The beginning of the end of the password

For Chrome on desktop OS, it will popup a QR code that you can scan it by passkey-registered phone like[1].

If your desktop/laptop has TPM, TrustZone or other similar devices, it can register Passkey too.

[1] https://9to5google.com/2022/10/12/android-chrome-passkey-sup...

ytchon Report: U.S. pedestrian death rate increased during COVID

I also didn't get the title (or my grammar is bad?)

"Increased 9x Faster" means 9*Population, or (rate_now/rate_prev)=9*Population? but Population itself is not even a rate.

ytchon Apple orders entire supply of TSMC's 3nm chips for iPhone 15 Pro and M3 Macs

I've heard that (I'm not experts on this, so correct me if i am wrong) making SRAM is huge different than making processing units (ALU, FPU or others). But CPU needs both SRAM and processing units. Marking always show best case only, therefore the final product won't as good as the marketing numbers.

ytchon Hardcoded Folder Icons in macOS

It even has tftp server:

https://rick.cogley.info/post/run-a-tftp-server-on-mac-osx/

ytchon HP bricking printers remotely if the client's credit card expires [video]

Maybe one day they may connect to internet by other neighbor devices like Amazon Sidewalk:

https://www.cnet.com/home/smart-home/amazon-echo-shares-your...

ytchon Dolphin Emulator for Xbox UWP

You are right, I forget about it, thanks.

ytchon Dolphin Emulator for Xbox UWP

You can enable Xbox One/Series X/Series S Dev mode for free to sideload UWP:

https://learn.microsoft.com/en-us/windows/uwp/xbox-apps/devk...

https://www.techrepublic.com/article/xbox-series-s-and-x-dev...

ytchon Source Code for Populous for Windows CE / Dreamcast Released

I guess it is ported version:

https://github.com/LemonHaze420/DCPopulous/blob/4cd8b7562191...

It's license dialog has a link to http://www.portable-games.com/populous

ytchon GNU/Linux shell related internals

It more likes "How shell invokes a command", I attended a POSIX programming course in university, one homework is implementing a simple shell, you need to handle the FDs, Pipes, environment variables by POSIX API as the article explains.

ytchon No one wants to have kids anymore

Capitalist: "without enough babies, economy will collapsed"

Employer: "Employees spend too much time on raising child, my business will fail"

Didn't they see who cause the problem?

ytchon Update on Supply of iPhone 14 Pro and iPhone 14 Pro Max

> - Foxconn workers have to walk on highways for hundreds of miles with their luggage to go back home

For anyone wondering why: It it because they are labeled as COVID close contact by health code system, so they cannot take public transport system even they have enough money.