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abnry

3,408 karma · joined November 19, 2016

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abnry··on For many home-schoolers, parents are no longer doing the teaching
I have a bunch of siblings, all of us homeschooled. Between all of us, some are more "socialized" than others. You can't leave out the individual in this discussion.
abnry··on For many home-schoolers, parents are no longer doing the teaching
Very, very wrong. I know numerous homeschooled peers who have advanced degrees, including PhDs.
abnry··on For many home-schoolers, parents are no longer doing the teaching
I was homeschooled K-12. Even 15 years ago, my parents would say that they were like general contractors for my education. And it is really is true. I had a mix of co-op, community college, online, self-study, and parent-guided study for all my courses. This was more so for highschool and less so for primary or grade school, which was mostly directly taught by my mother. And as others have said, homeschooling is very, very time efficient. IIRC, during grade school I was done by lunch time (maybe one or two smaller things required).
abnry··on Show HN: Open-source obsidian.md sync server
The kind of comment really, really rubs me the wrong way.

Your data isn't locked up in a format. Just use logseq or something if obsidian disappears.

Those who write the code have the right to control its source code. They aren't "inhumane" or thinking "short-term" just because its not open source.

abnry··on All of Physics in 9 Lines
The article is highly opinionated. This basically opens the floodgates for critical comments. But like you, I sense some value here, because distilling to fundamental principles is part of the game in physics. I am not knowledgeable enough to comment on how accurate it all is, but I am reminded of amazing things like Noether's theorem, where conservation principles come from symmetries. I would love to understand all of this better, and my assumption is that producing results from symmetries is what much of particle physics is focused on.

I think I'm okay with how opinionated this article is because, while I am not qualified to judge, it gives me an incredible sense of the wonder of physics. And I think opinionated intuitions, albeit somewhat wrong or imprecise, are useful for guiding ones understanding.

abnry··on Tabs are objectively better than spaces
These are the sort of controversial articles on Hacker News I come here for.

I'm practice, it seems my life is easier to live with others if I use spaces. But the tab is conceptually simple. It means indent, or something almost like "next-column". Spaces mean separation from words or tokens. So you are creating a new token as a compound of existing tokens when the original token already exists.

abnry··on Replace peer review with “peer replication” (2021)
Replication is not the same thing as zero bugs in software.
abnry··on Replace peer review with “peer replication” (2021)
But this is science we are talking about. A one-off lucky novel result should not be good enough. Why should our standards and our funding be so low?
abnry··on Replace peer review with “peer replication” (2021)
Physics is generally better since they have good statistical models and can get six sigma (or whatever) results.

And replication can be done by the same party (although an independent party is better), and that may mean many trials.

And do we even set policy based on existence or non-existent of higgs bosons?

I am particularly unhappy with soft sciences in terms of replication.

abnry··on Replace peer review with “peer replication” (2021)
If that's the case, then don't claim confidence in the work or make policy decisions based off of it. If there is no epistemological humility, then yes, it is still BS.
abnry··on Replace peer review with “peer replication” (2021)
If scientists are going to complain that's its too hard or too expensive to replicate their studies, then that just shows their work is BS.
abnry··on NASA has reestablished full communications with Voyager 2
Does anybody know the bit rates, bandwidth, spreading, coding, and packet sizes of the messages they send? It must take several hours to send a message. I also wonder what the minimum number of bits they need to send to recover control is.
abnry··on LK-99 is an online sensation but replication efforts fall short
What are the flaws? Why is the lay public not allowed to be involved? That sounds like elitist gatekeeping. The truth will come out regardless. Why can't everyone share in the excitement?
abnry··on Successful room temperature ambient-pressure magnetic levitation of LK-99
> It's a direct side effect of reputation and funding being closely correlated

This sheds some light on it to me. I guess what partly surprises me is that people seem to care more about reputation than just a means for improving the signal to noise ratio in papers or as a estimate on what will give you your biggest bang for your buck.

The other issue I see come up is the idea that if there is no signal to noise filter, then a scientist might "waste their time," either reading the paper or trying to replicate. But to me, it sounds a little bit like trying to avoid actually doing science. And peer reviewed papers don't imply excellent quality either. You should evaluate papers on their merits. It is your job, as a scientist, to evaluate the most productive approaches based on the merits of the science being done, not based on reputation.

abnry··on Successful room temperature ambient-pressure magnetic levitation of LK-99
> the career implications for rushing something out that is later found lacking is not great.

On a tangent, this idea of reputation keeps on coming up in this whole discussion and I am burdened by it in a way I don't fully understand. The way people have talked, if this LK-99 doesn't work out, then it is almost as if those who published this did something _morally_ wrong. Well, morally wrong is not quite true, but the way people talk about it tanking their reputation it feels like such a strong statement. Is there some way we can focus on the science and not get bogged down in the very human reputational part of this whole thing? It's almost as if a good chunk of the scientific community don't care about the benefits the science brings but the reputational benefits.

abnry··on Some remarks on possible superconductivity of composition Pb9CuP6O25
Just wait for more comments in these threads. Someone knowledgeable is bound to explain more.
abnry··on Man spends entire career mastering crappy codebase
Yes, 30 minutes is a shockingly long time. I'd say 5 minutes makes a lot more sense.
abnry··on LK-99: Team of Southeast University observed zero resistance below 110 K
It only adds to the channel. I find it amusing.
abnry··on Bored? How about trying a Linux speedrun? (2020)
Can someone please do this and stream it so I can learn?
abnry··on Electronic Structure of LK-99
I don't know why anyone should be concerned about anything here, unless you want immediate confirmation.

It's a process. Scientists will try to replicate and try to simulate and try to reason theoretically. They are bound to make mistakes but all of this can be critiqued and iterated on.

Again, there's no problem unless you need immediate confirmation or you think chasing this idea is a waste of time.

Enjoy the ride :)

abnry··on Musk threatens to sue researchers who documented the rise in hateful tweets
Title should be modified since "rise of hateful tweets" is what is in dispute in the lawsuit, if I understand correctly.
abnry··on Octox: Unix-like OS in Rust inspired by xv6-riscv
I found it so strange that to start a child process you had to fork your current process. Not an intuitive idea to me at all.
abnry··on Octox: Unix-like OS in Rust inspired by xv6-riscv
When I realized that the linux operating system had to have hardware support (traps for syscalls and interrupts), it was eye opening.

I guess your post highlights how operating systems and hardware developed together, and to innovate outside of what we currently have there is a need to somehow jump outside of this loop.

What are the hardware features are modern operating systems reliant on and the hardware features they aren't reliant on?

abnry··on A Romanian economist legally gamed the lottery
Nope.

But even if you are correct, lotteries and gambling have more of the essence of "take from the hopeful, give to the lucky" than any of the things you described.

abnry··on A Romanian economist legally gamed the lottery
I hate lotteries and gambling in general. Take from the hopeful, give to the lucky. And the house (almost) always wins. Yes, I have some respect for those who can game the system, because I like the house losing, but their winnings are still taken from the hopeful (or worse, the naive and stupid).
abnry··on Can Chess, with Hexagons? [video]
Google Hexagon Chess.
abnry··on Amateurs obsess over tools, pros over mastery
Just like the good writers, who hedge and qualify their every statement. It's the amateurs who make the bold claims!
abnry··on The Animated Elliptic Curve
This was quite lovely. Cryptography was something I missed in my mathematics education (well, I did cover RSA) and this gave me the gist of what all these elliptic curves are about!
abnry··on The Titan Submersible Was “An Accident Waiting to Happen”
If you mean that the event isn't significant in a societal sense, I totally agree. I don't really think there is any big moral conclusion to take from it. However, the story just has so many fascinating elements to it. The whole titanic story is fascinating, and it is incredible people found the wreck and can observe it. The technology is incredible. Then there is the thrill of exploration and the natural danger to it, but there is also the hubris of the OceanGate CEO, significant enough that he was blind to his own danger, which resulted in the deaths of more people than him. And what was the moment like? An implosion in an instant of a second... as opposed to being trapped and slowly suffocating. Those are two images hard to get out of one's head.
abnry··on Googling 'abortion clinic near me'? The top result often an anti-abortion clinic
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