HNHacker News
TopNewBestAskShowJobs

datashow

597 karma · joined October 23, 2019

submissionscomments
datashow··on Black boys don’t need more discipline, they need mentors (2018)
"and no daddy in their lives". I thought the context was obvious.
datashow··on Black boys don’t need more discipline, they need mentors (2018)
No. Non of them has father present. I thought the context was obvious.
datashow··on Black boys don’t need more discipline, they need mentors (2018)
I just happened to read a story where an Asian was killed while two blacks trying to steal laptop from him https://abc7news.com/5811847

The story mentioned one suspect's sister saying " I have 4 kids and no daddy in their lives ". I simply can't understand this. One kid , I can understand. But four? ... Four (Add: non has daddy present)? I just have too many questions.

Add: I interpreted "no daddy in their lives" as they never had a daddy present ever. This could be my mistake.

datashow··on Ask HN: Are books worth it?
I think it really depends on whether you want to advance the breadth or depth of your knowledge.

If you want to go breadth, meaning touch a little bit of here and there, yes you can rely on the internet. There are many non-fiction books can help you in this direction, but you do not have to read them.

But if you want to go depth in a particular field, I think you have to read at least some most important books in that field. I do not believe you can learn an advanced field, say quantum physics, by just watching youtube videos or reading online articles. The reason is that many in depth knowledge are only presented in books.

For programming, I think yes you can definitely become a programmer by learning online. But then again, if you want to be an expert in a particular field of programming, you have to read books in that field. Even for data mining and AI those kind of stuff, there are good online courses, but I don't believe online materials can cover important details as in books.

The most cutting edge materials are usually presented in research papers or conference presentations.

datashow··on 2k drones light up night sky in Shanghai to welcome new year
Maybe I am the only one feeling this way? These drone shows are just silly elementary level computer visual arts with a huge size.

Fireworks are visually way way better than these, and more creative, more exciting and holiday-ish.

datashow··on How to Write a Book in Emacs (2015)
How does this compare to R Bookdown ( https://bookdown.org/yihui/bookdown/ ), which can do the regular markdown stuff, plus LaTeX, and also run the R code and embed results (tables, plots, etc.) into the book?
datashow··on Ask HN: How do you protect your parents from tech scammers?
Yes, when the scheme is simple and straightforward, there is no point to say "do not call your children". But within a little bit sophisticated schemes, scammers can find a reason to plot in this kind of demand. Such as your computer has been compromised by terrorist organization, do not call anyone especially your children.
datashow··on Ask HN: How do you protect your parents from tech scammers?
Good point.

What if the scammer plot "do not call your kids" into their scheme?

datashow··on Authoritarian nations are turning the internet into a weapon
"exhibiting suspicious behavior in the wrong place". I need more details to make an informed judgement.
datashow··on Authoritarian nations are turning the internet into a weapon
I'm not sure what is your point, authoritarian or democratic does not make a difference? Both kind of nations have same kind of access to citizens' private information? Both use the monitoring for the same purpose? US is throwing people who offended Trump online into jail like China is doing for Xi?

I just can't live with this kind of intentional defense of authoritarian by making nonsensical and shameless equalization.

Plug:

China Sentences Wang Yi, Christian Pastor, to 9 Years in Prison https://www.nytimes.com/2019/12/30/world/asia/china-wang-yi-...

Kaifeng Jewish Community Suffers New Suppression https://bitterwinter.org/kaifeng-jewish-community-suffers-ne...

Inside China’s Push to Turn Muslim Minorities Into an Army of Workers https://www.nytimes.com/2019/12/30/world/asia/china-xinjiang...

datashow··on Biden to Coal Miners: Learn to Code
Is this really an education funding issue?

How many countries have successfully transformed massive adult labors to programmers? I'd like to know.

datashow··on Sam Altman and Andrew Yang talk UBI
No. They are not the same. How is it worthless to replace the king with a president? I don't understand your logic.
datashow··on Sam Altman and Andrew Yang talk UBI
> The problem with having a handful of people be billionaires and trillionaires is that money is power, and with that amount of money you have nearly unlimited power and influence over everyone and everything. A system that will concentrate that much power will be inherently evil, it will and does serve the needs of that few over the needs of the many.

It is kind of right but essentially wrong. In any society with the size of more than hundreds of people, it always has a power structure, and always has a small number of people concentrate power way more than others. It is not a problem with super rich people. Even in all the Communist countries (Soviet Union, Mao's China, etc.) where everyone is super poor and there is no millionaire, power structure and concentration of power still exists and is way more cruel than in a market-driven society.

Of course UBI doesn't solve this, because there is no way to solve this. Even if you nuke the modern world to stone age, power structure and concentration of power will 100% appear again and keep growing when you have a team, a tribe, a city, a nation.

datashow··on Why introductory chemistry is boring: a long-term historical perspective
One unfortunate truth is that even if you make class interesting, most of the time "interesting" does not transfer to "learning". Most students only pay attention to the fun part which includes color, sound, visual effects, etc. but they quickly lose attention when cognitive engagement gets involved.

Every teacher can learn a few tricks to make class fun, but it is very difficult to keep students engaged in learning conceptual and theoretical knowledge.

Some students are problem-solvers. A cognitive gap between the problem and the solution is enough to keep them motivated and engaged.

datashow··on Ask HN: Solo devs, how do you plan your development?
I find GitHub "Projects" (https://help.github.com/en/github/managing-your-work-on-gith...) is the most flexible. It is basically boards of columns. Each card can be an issue, or a piece of markdown text. You can use the markdown as a note or as a list of tasks and subtasks.

I find GitHub project boards more fun to use than Trello boards, because you can just type and let your ideas flow.

Within GitHub project boards, you can also add cards from issues, or you can convert your markdown text cards to issues.

datashow··on YouTube’s Rabbit Hole of Radicalization [pdf]
I don't follow your logic. Yes, CNN and TYT are very different. This only means they can be tagged differently, but it doesn't mean they cannot be tagged under same category.

For example, The Selfish Gene and Advanced Algebra are two very different books, but they can be both categorized as nonfiction.

Maybe you are right with the conclusion, i.e. CNN or TYT should not be both categorized as “Partisan Left,” but you need a better reason.

datashow··on A quarter of Alabamians live in homes without internet access
Even if we accept "internet access" a "human right", it still doesn't mean the internet access must be from home. Schools and public libraries can provide internet access.
datashow··on What's Next for R?
I guess that's more an issue with the courses than the language per se. Sometimes it is a good idea to begin the course with direct application, instead of focusing on the language.
datashow··on Hacking Your Keyboard
Those are shortcuts on Windows

shift+Home/End: select from current cursor to the beginning / end of the line

ctrl+Home/End: jump to the beginning / end of the document

ctrl+shift+Home/End: select from current cursor to the beginning / end of the document

datashow··on Hacking Your Keyboard
Thank you. However, I do need Home/End keys, because I use Home/End, shift+Home/End, ctrl+Home/End, ctrl+shift+Home/End frequently.

I also like low-profile keys (effortless key pressing) like the ones on a laptop keyboard.

I found the 75% on this page could also be a good choice: https://blog.wooting.nl/the-ultimate-guide-to-keyboard-layou...

Edit:

Ha! I just found a 75% keyboard on Amazon: https://www.amazon.com/dp/B07M9PGMT9/

Another one: https://www.amazon.com/dp/B07JGQP89G/

datashow··on Hacking Your Keyboard
May not be relevant to the article, but the 80% keyboard is what I want (I never use the numpad, but I use home/end/page up/page down a lot), but I can't find many choices on the market.
datashow··on Dropbox Transfer
I left Dropbox because they count shared space against everyone involved, which makes me cannot share the "photos" folder with my wife (unless we both purchase the 1T plan). Not sure whether they changed this practice. I am a satisfied OneDrive+Office365 user now.
datashow··on Grumpy Website – a blog about everything wrong with modern web & tech
I checked this issue before. One of the explanations was that Google Drive also counts history in the space. Not sure whether this is still true.
datashow··on We've Just Had the Best Decade in Human History
> If poverty is an error, then a 60% error rate on 1 billion requests and a 10% error rate on 6 billion requests is the exact same thing.

No. They are not the same thing. Error rate does not automatically drop when requests grow. The number of errors remains the same, but the number of "good" increases, how is that "the exact same thing"?

Also, 1 billion world population was in 1800s, at that time poverty rate was 80%.

datashow··on Genetic testing is an inexact science with real consequences
Interesting, Google only gives me https://en.m.wikipedia.org/wiki/Exact_Sciences_%28company%29
datashow··on Genetic testing is an inexact science with real consequences
I have never heard of "inexact science" or "exact science". Googled exact science, found all results are related to a company. The term "exact science" sounds pseudoscience.
datashow··on [dead]
> Russians interfered with our elections in 2016

This line implies two totally different things and has been used by politicians and biased medias to mislead the public.

One thing is Russians interfered the elections in 2016 by buying ads and spreading misinformation, which did happen.

The other thing is Russians interfered the elections in 2016 by working with the Trump campaign. There is no evidence for this even after FBI violated many protocols in their investigation.

One example of media spreading misinformation: https://www.youtube.com/watch?v=NdIkgWdAq3Q

datashow··on Silicon Valley IT Administrator and Friends Charged in Insider Trading Ring
What I am says is that if he does not tweet, the news will come out anyway. In this case he only changes the timing.

If the news is already out, his tweet doesn't even change the timing.

datashow··on Silicon Valley IT Administrator and Friends Charged in Insider Trading Ring
For the second point, can you differentiate how much of the impact was from the diverse signals generated from the trade war and the impeachment process, and how much of the impact was from his tweets alone? The fact is that the news from the trade war and impeachment process create signals even without his tweets, his tweets only changes the timing of the signals (or not).
datashow··on Silicon Valley IT Administrator and Friends Charged in Insider Trading Ring
The accusation: "The president of the United States engages in insider trading regularly, right in front of the whole world, on Twitter. "

And "Why is this downvoted? This is an openly true fact."

Apparently, they equal influencing the market to insider trading.

← PreviousPage 5 of 8Next →