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Choco31415

207 karma · joined December 17, 2016

Programmer, AI researcher, videographer, and more.

GitHub: https://github.com/Choco31415

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Choco31415··on Human gene linked to bigger brains was born from seemingly useless DNA
You are correct. Neurons are not Turing machines. However, they are complex enough that they can be Turing machines so it can be fun to call them that.

I didn’t expect this topic to be so controversial to be honest. I’m not surprised though.

Choco31415··on Human gene linked to bigger brains was born from seemingly useless DNA
That simplifies neurons a bit too much. There are a variety of neuron types including mirror neurons and pyramid neurons. These can feature more or less branching even.
Choco31415··on Optimal hydration may slow down the aging process in humans
Could it be explained? I’d like to properly understand the article.
Choco31415··on I am frustrated with Stable Diffusion
I almost feel like that’s more of a reflection of someone’s attitude or even their mental health. Negativity can be nice, but insulting something for being what it is is not exactly intelligent.
Choco31415··on Sheep flocks alternate their leader and achieve collective intelligence
I think I found the article!

https://phys.org/news/2022-11-physics-sheep-flocks-alternate...

Choco31415··on How Australia became the world’s greatest lithium supplier
They’re directly quoting text from the article. See the section “ Why is lithium extraction bad for the environment?”.
Choco31415··on India lifted 415M out of poverty in 15 years, says UN
That article was specifically about India’s capital. It’s also possible that problem can be fixed in the future, so people are lifted into a clean urban environment.

Also, last I recalled, London faced similar issues before and is in a much healthier state nowadays.

Choco31415··on Microbes that cause cavities can form superorganisms able to ‘crawl’
My teeth were always complimented by the dentist as being beautiful. This is despite plenty of juice, candy, snacks, no special diet, etc, outside of regular dental cleanings and making sure to spend proper time brushing each tooth. I’m 24.

Maybe something else is at play?

Choco31415··on Cost of public EV charging rises by more than 42% in four months
Curious - how much would charging costs have to increase for the cost of driving an EV to match that of an ICE car?
Choco31415··on The strength of the strong force
So if you have two gluons, at -1 and +1, and a random gluon appears in between them at x, the graph of the force/pull of the gluon is close to a step function, correct?
Choco31415··on Study: Alcohol is never good for people under 40
I’ve recently discovered Boba tea as a fun drink to get with other people.
Choco31415··on Citigroup plans to hire 4k tech staff
Apologies, but this is one of the first times I’ve heard that certain industries in tech are better or worse then others. Is there a place to read up more about this?

Thank you. c:

Choco31415··on Andrew Ng updates his Machine Learning course
I used it to help learn ML before I could start taking the classes at my university and it was enough to land me a research position at the Air Force.

Admittedly I also bought textbooks and worked through tutorials as well.

Choco31415··on Prediction that Kyiv falls to Russian forces by April 2022 goes from 90% to 26%
I think the question is - is food being mobilized to Ukraine?
Choco31415··on Collapse of the Fern Hollow Bridge
What do the people who currently have the trucks use them for?
Choco31415··on Goldman Sachs invests $250M in compressed air energy storage
An underground reservoir of water though should still be safer. Only the operator(s) on site might be impacted by a failure.
Choco31415··on Unbreakable phone screens could be made with a new material
…by the Hydraulic Press Channel.
Choco31415··on Ask HN: What you up to? (Who doesn't want to be hired?)
Out of curiosity, what sort of audience do you plan to market this project to? What end goal do you want/see for it?

Really neat project by the way. It looks great! c:

Choco31415··on Ask HN: What you up to? (Who doesn't want to be hired?)
I’m learning cooking as I’m going independent from family. I’m also working to form better exercise habits and have joined a book reading club before resuming my Masters in two months. It’s a fairly relaxing moment in time.
Choco31415··on The Linux Experiments YouTube channel has been terminated
However, there is still less manual work being down if videos are flagged via an algorithm versus checked one-by-one by a person. Though, results may vary.
Choco31415··on Tahoe's hiring crisis is unraveling small businesses during its busiest season
If landlords are charging significantly more then the mortgage costs, then what if the rent model was switched to an auction with a minimum set at the landlord mortgage costs plus some percentage on top? That way the landlord gets what they need and the pricing is not arbitrary, but at least fixed to some realistic measure.

Note: I’m not very familiar with the situation, just ideating.

Choco31415··on Deep dive into plastic monomers, additives, and processing aids
Per lifetime? Per year? Per kilogram of food? Can you give a bit more context to this comment?
Choco31415··on Factorio 1.0
Correct. The walking speed bonuses are:

30% faster for stone brick, 40% faster for concrete, 50% faster for refined concrete

Speed bonuses also apply to cars/exoskeletons making overall travel faster.

Choco31415··on Recursion and Fractals
It partly depends on who you're teaching. For a young audience, Scratch is great at introducing basic problem solving in a creative format. It can used for many means, including crafts and robotics. For example, at the 2016 Scratch conference, there was an exhibition of student projects that used Scratch extensions (ex: Makey Makey, Arduino) to create animated crafts. One project, a paper city, had copper strips which when touched caused various sounds to play.[0] Another project recreated robot boxing.

The CS teacher at a local high school switched to using Scratch as a casual introduction to programming, moving away from Alice (and previously, I believe, a straight jump into Java). They use it for a few weeks to begin each term. I can get their thoughts if you're interested?

There are several books, and Scratch itself provides many lessons and features for teachers, see this page: [1] At one point, Pursuitery held an introduction to coding "camp" with Scratch, and you can read about their lessons here: [2] I've had less experience with Scratch in education, so it's hard for me to comment on what materials are the most effective. However, there are educator groups that can give advice, see the Facebook group listed on [1].

If I can go on a winding tangent, and this applies stronger to elementary & middle school... I think two of Scratch's strongest appeals are its freedom and feedback. It's okay to experiment, try new things, and fail. And the debugging that occurs along the way, in a way helps students debug their own thought processes. Giving some creative leeway for students can help them help themselves. Many students who are introduced to Scratch, stick with it personally after the class ends.

In other words, it can be great to focus on teaching algorithms or concepts, but letting people learn through projects often helps make learning more engaging. It helps to show that computers are not just something you do stuff on, but are part of a broader culture. It can be another medium for self expression, as many people share art, games, stories, and other content regularly on Scratch.

A few ideas were taken from Mitchel Resnik's keynote at the 2016 conference, which talks about a mix of how Scratch is used and powerful ideas.[3]

[0] http://u.cubeupload.com/Choco31415/DSCN3966.jpg

[1] https://scratch.mit.edu/educators

[2] https://en.scratch-wiki.info/wiki/Scratch_in_the_Media/Pursu...

[3] https://www.youtube.com/watch?v=alsfSTVn2es

Choco31415··on Recursion and Fractals
This is the first time I've seen the Scratch Wiki listed on Hacker News, which surprises me and doesn't. It's nice how Scratch easily supports simple projects while having a high ceiling, as noted by people making 3D projects and fractal art. That reflects somewhat in the wiki's diverse articles.

I'm a system administrator for the international Scratch Wikis. While I haven't been that active recently, I'll try and answer any questions that people want to ask. :)

Choco31415··on DoorDash confirms data breach affected 4.9M customers, workers and merchants
DoorDash implemented that scheme to give more consistent payments to workers, as tips are quite variable. Anyway, if it helps, DoorDash is currently moving away from that model. [0]

[0] https://www.theverge.com/2019/8/22/20828742/doordash-tipping...

Choco31415··on Bike crash left Spokane man unconscious, so his Apple Watch called 911
I’m on an iPhone, iOS 12, and it does create long, scrolling windows.
Choco31415··on Ask HN: Are you ok?
Not sure if citruscomputing is referring to this, but Death/Bad Girl from Thank You by Black Dresses has that lyric. It’s towards the end:

“i didn't even know what i was going thru

until like, a year ago

and now it's everything

this place is designed to kill us

and make us think it's our fault”

Choco31415··on US city rejects $5.3M ransom demand and restores encrypted files from backup
It’s not black/white as having backups solves ransomware attacks. All that the ransomware must do is lay low long enough that the oldest backup is likely to have occurred after the infection, hence containing it.
Choco31415··on ECMO pumps blood out of the body, oxygenates it and returns it to the body
From his's wife's diary, it was necessary because the insertion site for the original was not working as expected:

"Wednesday, 27th of August 2015 – Day 9

The nurse explained to me that they put another line in your neck, just to get extra line of blood to the lung machine as you need more oxygen to keep other organs working well. Your lung still is quite sick, the tube into your lung wasn’t working much comparing to the one from the lung machine."

A little more context:

"Monday, 25th August 2015 – Day 7

Your oxygen level requirement is 100% now, in case during night time at 3am, you need more oxygen, and there is no way they can feed you more here in Knox. So they need to cut a hole in your leg to put a man-made lung to pump extra oxygen in your body (as your lung is too inflamed), which can only be done in Alfred hospital."

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