skysight-inc/HackerNews huggingface dataset:
Nuclear fuel is very expensive to process and manufacture, and is not reusable. In particular, for these nuclear rockets, you'd never even be returning it to the Earth, so it is definitely not reusable for that reason alone. The reactor itself is going to be very expensive too; doing anything nuclear just fundamentally ramps up the cost a lot vs building e.g. a Merlin engine.

The hydrogen propellant is cheap enough, sure. I'm specifically talking about the nuclear fuel itself as being expensive.
This place has really changed for the worse recently. Only a few months ago I was talking about how HN still serves better content and higher quality discussions then places like Reddit, but it appears that's no longer the case. The same inflammatory crap (along with the abuse of the platform's voting and flagging features) have made their way here and I don't think it's going away. It's less "I disagree, here's why" and more of the "fuck you, you're wrong and an idiot!" type mentality becoming prominent.
They're not artificial, they're inherent to the business model. So I agree that the limitations I mentioned don't have anything to do with streaming technology, they crop up time and time again because of some of the limitations apparently required by a streaming business model.

And so in that sense I think it remains a useful metaphor. What sort of business models will be profitable when it comes to streaming courses online? Will they always put the student and learning first, or will the viable business model for these impose limitations, or push things in the wrong direction.
Here's the story about Toby Allen's failed projects.

He has founded many startups throughout his career, but there are two that gave him lots of valuable lessons: RealityHunt and "I Voted Remain".
It works until it doesn't. We had issues where classes were loaded in a different order on linux causing issues that we could not repro on windows.
Unable to access this site in Hong Kong: "Access from your Country was disabled by the administrator."

For anyone else with this problem, here's an archive link: https://archive.is/h3PWJ
No idea what you do, but a lot of companies are newly open to full-time remote employees, fwiw. Sounds like you work for jerks.
They also wont let banks or oil companies purchase co-branded clothing...

https://boingboing.net/2019/04/02/fintech-bros-not-welcome.h...

IMO the whole refusing service is weird, not giving out advertisement dollars to specific companies make sense though.
TBH, college for me was about finding myself as a person. Being away from home for 4 years, I grew so much as a human being in numerous and incalculable ways. Being grouped with thousands of others I've never met before -- you learn "human" skills in a way that can't be taught online.

Online education is great and all, but the crowd that argues that it is the end-all-be-all of learning is missing a key element of the experience.
The original article they're complaining about is pretty fair, and IMO, great journalism.

https://www.rollingstone.com/culture/culture-features/coomer...
Indie Hackers Found Their First Customers
+1 for Traefik. The problem was the documentation IMO. It works great including the integration with Docker.
how much would you pay monthly for Google ?

Im paying for Google Storage, Youtube Premium and would like one fee where I dont see any ads at all.
And, oh yeah, grokking continuations makes it a lot clearer how generators, iterators, exceptions and coroutines work. One concept which subsumes all the others. And if you want to get into compiler construction, understanding CPS conversion makes it much easier to do code transformations.

There's just tons of research which went into Lisps, because it's such a nice vehicle for language experimentation. There's half a century of research going into Lisps. Other languages haven't been around for that long, so I suppose there's something to find in Lisp history for everyone, but it might not be the same thing for everyone!
If you don't mind, what is your comorbidity?

Are you old or obese? Or some other health condition?
SICP is hard but remarkably complete. If you are vaguely familiar with the maths that is chosen as the domain then you can mostly begin the course from scratch.

It starts with some really simple stuff like (+ 2 2)

Then introduces some concepts like recursion along the way. Next you get data structures and recursive data structures before they pull off the greatest recursive magic trick to show that your code is data itself.

Along the way you get a pretty accessible intro to functional programming without having to get bogged down in types, proofs and monads because Scheme is actually imperative.

With my teacher hat on, this is a masterwork for pulling together so many concepts into one (relatively) tiny standalone course.

With my student hat on it is profound on so many levels. I learn something new each time, even if only to appreciate names like Church and Curry being namedropped as bits of history because I'm not thinking a million miles an hour to process all the new information. The passion Sussman and Abelson bring the the course is authentic, endearing and unfakeable - you know they really felt it.

In terms of what you do day in day out, SICP would be my go to for covering most the fundamentals of "computational thinking". You learn how basic algorithms and space/time complexity, recursion and iteration, functions and objects, data structures and finally program language construction (with some teeny peaks at the machine itself). And I was able to learn all this without a computer - using just pen and paper because Scheme is so simple. This freed me up from the distraction of trying to make a computer do something and actually using my mind to reason. As someone who did not do a CS degree there are not many other resources that are that high up for grounding you in all those subjects to get you ready for the job or put you on the path for further reading.

Homoiconicity itself is such a mind bendingly pleasing thing to encounter the first time round, the only thing that came close was the stack machine - presumably because the list and the stack encapsulate something primitive to computation and language.

I remember the first time the penny dropped when I realized that the cons operator for a list was also the spread operator for arguments in a function signature and thinking whoaaaaa
>The layout is done with tables

You'll be amazed to see how is layout done here on HN.
Shouldn't that scale well in space as the shell of the H2 tank scales at the square whereas the volume scales at the cube? In general it seems like density should matter less than mass, but I've never attempted to contain and accelerate large quantities of liquid H2.

Is insulation that much of a problem in the vacuum of space? I would think you could just cover it in a reflective material and call it a day.
I suspect FLux/Knet are still slightly slower and less memory efficient than PyTorch/TF, although things are moving very fast here!

This is not relevant in understanding AlphaZero.jl speed though. The reason it is much faster than Python implementations is because tree search is also a bottleneck, and Julia shines here!
I've heard now from a couple of people that they've enjoyed remote work and some have already sucessfully negotiated that in future they will work part time from home. So it really seems that some of the change will be permanent.
lose weight.
100% agree. I didn't know about Loom but I have been impressed by the adoption of TLA+ in different parts of Rust development.
It seems more the result of people looking for agreement than discussion. HN is not Twitter.
Actually, alcohol is the second most common substance studied for its "beneficial" properties (used to be first, but it's harder to rationalize nowadays).
I view coffee as absolute evil, but necessity for any kind of office type work.
that's exactly the point, not everyone purchase by driving experience, and value is subjective, don't know why you're contrarian to the statement.

the point is that nothing of value can come from arguing subjective points.
It's the same thing. High end GPUs have been using HBM2 for a few years, A64fx uses HBM2 for CPU memory.
We are.

Check out the Pinephone.
I remember getting downvotes for mentioning the lockdowns are going to either last 2 years or it will be a waste of effort.

The benefit of science is that I was correct, the negative of the internet is that popularity rules.
Find Your North Star
The "traditional CPU" portion of the core is a bit more capable than KNL, but yeah, that's roughly accurate.
I'm well aware but SO isn't the last word on peer support.

i) We don't have to dehumanise interaction to present clean information.

ii) I believe there is much more human motivation potential to be found in "personal connection" than there is in fake karma. I want to be thanked, I want to know how I mattered, I want to know what the user was building just as much as I want to be gracious and share how much they helped me.

iii) They are trying to use the same rules for wildly different situations. There are two faces to SO: very high traffic questions better directed to maintained documentation/tutorials, and a very long tail of 1:1 interactions that get less than 100 views and no votes. Right now SO doesn't serve either very well: the high traffic do not benefit from 10 years of highly voted bad answers and the low traffic do not benefit from the interventions of jack-booted deletionists.

iv) IMHO you often get a better experience and treated with more respect in a discussion on a GitHub issue. We don't have to turn github issues into a highly constrained impersonal experience to be effective.
Spotify is trying to embrace, extend, and extinguish open podcasting
It's probably a serotonin 5-HT2a antagonist, given that most of the psychedelic effects come from 5-HT2a agonism.
Here's a photo of the newsroom so you can get a sense of the degree to which they work in proximity:

https://static01.nyt.com/images/2016/12/18/opinion/sunday/18...
Go Jackets! Yes, technical schools (schools focussed on stem) offer a lot of such opportunities. The other side of the coin is if you don't have that inclination out of high school, you might miss out on such opportunities and vice versa.
Probably more room for the smaller players to get their ads seen. Idk if pricing or visibility is realistically affected by market saturation though.
I suggest building a supercomputer out of Ivy Bridge Celerons. They are dirty cheap, like $2 in bulk, yet quite performant.
If you use it for networked communications, by default use the verifier on the C++ side, would be my tip.
You do not find phenolic compounds in every vegetable.
You can't imagine the number of studies to highlight the benefits of alcohol. Especially in big wine producing countries.
Would it?

https://www.express.co.uk/life-style/health/841108/Health-ne...
Why is refusing service weird ? They are signalling their values with their checkbook, more than 99.9% than everyone else out there that just put up a few ig posts in "solidarity"
I've used visualsitemaps.com and really like it, seems to be way further along than this
Well, there are a lot of places where consumers pay more for convenience. In fact, you almost always pay more for items in “convenience stores”. You even pay more for the cold drink in the check out isle at grocery store than you do for the same amount of drink in the aisle.

How much more do you pay for recessions at the movie theater than by going to the dollar store before hand and putting the candy in your or your SO’s purse?

I’ve found out later that I could get items cheaper by doing comparison shopping all the time. There are also times I purposefully pay more for convenience.
Just what percent of broken laws in the US do you think end up being enforced with guns drawn?

And given that subpopulation, have you considered any of current proposals making the round for nonviolent conflict resolution by specially trained, unarmed mediators?
I imagine the amount of stuff floating around up there is so vast, once you can build all the heavy, bulky parts of a propulsion system in space, produce fuel in space, and automate the mining, you could truck absurd amounts of all kinds of raw materials to Earth, easily more than you could realistically use in orbit short-term. But I guess people could be made to pay a pretty penny for Space Gold accessories – or space diamond, space platin, space whatever. Say, an Apple Watch milled from a solid chunk of Space Platin or even Space Diamond, I think that might sell pretty well.

As to getting the stuff down, I imagine one could do that relatively low-tech; cut it into manageable chunks, wrap those in some kind of simple heat shielding, deorbit to some remote place and have some kind of parachute system slow it down enough to not disintegrate on impact; a chunk of solid gold should be able to take quite a beating.
>Power limits and memory hierarchy both benefit the 9900k heavily in this comparison, which is why I went with the single-core score.

But then you're leaving out the actual interesting scenarios for the question of Apple ARM performance in laptops/desktops.

We've already known for a while that the A1x family is an IPC beast.

But it's sustained power and memory subsystem performance that are the hard part in scaling up.
> They want to be "fair" to everyone, including those who have positions that cannot be performed remotely.

But, this only increases the risk for those who actually do have to go in. Everyone should be vocally opposed to this policy, including (especially?) those to whom this policy is supposed to be "fair."
It's cheaper to get clicks because there's less competition for the keyword. True for a lot of categories right now.
The best way to protect the health of the employees who cannot work remotely is for those who can to stay home. It's appalling that your employer doesn't seem to understand this.
The article doesn't mention the political radicalization students are subjected to at university. Having attended a decent school for two years after the military, I never in my life saw such extremism concentrated in one place.

I believe that radicalization combined with the psychological effects of the lockdown is at least partially responsible for the social unrest we're seeing today.

And now that I have my own children, I hope there are viable alternatives by the time they turn 18.
This would create a weird paradox:

Advertisers want people with disposable income.

People without much disposable income get really targeted ads (they won’t pay for the privacy).

People with disposable income pay for the privacy service and don’t get ads or get poorly targeted ads.

It then becomes more like traditional ads that get broadcast to everyone.

So the policy shoots itself in the foot.
The implementation includes Connect Four as an example application. While the standard board size of 7x6 is indeed solved, as they note, and in fact all sizes up to 8x8 are [1], they could have picked 9x8 or 9x9 which are currently unsolved. The latter is the new standard size on Little Golem which upgraded from 8x8 when that was solved.

[1] https://tromp.github.io/c4/c4.html

[2] http://www.littlegolem.net/jsp/games/gamedetail.jsp?
gtid=fir

[3] http://www.littlegolem.net/jsp/forum/topic2.jsp?forum=80&top...
Many companies have been reimbursing home internet and electricity bills since March. Mine even paid for an chair, desk, monitor and lamp of my choosing for my home office.

I hope this becomes the norm if remote becomes mainstream
For this kind of system the price of the processors isn't really a big focus.
Not a good time to own commercial office real estate. Office rental rates will likely race to the bottom as more and more businesses decide to stay remote.
There's a world of difference between what some 13 year old said on Twitter in 2011 and how a business actively treats it's employees today.
> This transition is likely to appear first in technical degree programs, where it is relatively easy for students to certify their skills online

This is dangerously false. The world isn't software engineering.

Engineering disciplines are in many ways fundamentally about learning to use expensive, special-purpose equipment to design, monitor and control expensive, special-purpose, reliability-critical infrastructure. Sometimes, as in the case of nuclear engineering and radiological sciences (the topic of my undergrad degree), access to this equipment and training is regulated and restricted by the host nation-state.

Perhaps some disciplines (Mechanical, maybe Civil) are democratized enough that something like a Hackerspace membership could complement an online degree program, but for others (Aerospace, NERS, Biomedical) I just don't see how you train people and verify competence without a centralized campus and training equipment.

Also, it may not be a good assumption that Software Engineering will remain as democratized as it does today. Web Development, sure, that's in some sense inherently by-and-for consumer devices. But things like IaaS, Machine Learning, and physics / engineering simulation (this last is what I now the most about) increasingly occur on specialized hardware that's at best inconvenient and at worst impossible to learn on a typical consumer device.

Changes in consumer devices themselves are aso in some sense de-democratizing tech learning. My wife has worked in the higher education space in operations, and still does a lot of UX research there as well, and in her experience the technical competence of students with business-standard tech platforms (mainly e-mail, but also things like spreadsheets and word processing) is regressing, and COVID-19 is exposing how poorly current university infrastructure serves students whose only device is a smart phone (common among students from lower-income backgrounds).

We may have benefitted from a blip in history where a) B2B tech vendors were unusually successful at selling their budget B2B products to consumers and b) the performance requirements of a consumer product segment (i.e. games) drove the hardware innovations underlying a high-growth B2B market (ML on GPGPU)
Is there a CDN sitting between your small droplet and the world?
So unlike a modern tech company, they sit farther apart and at least have barriers between their desks?
I've seen people get offended by celebrities with insensitive takes, but I've never seen anyone on HN get cancelled because of a comment. The worst I've seen is "this is wrong and here's why" or "I don't want to talk to you".

Generally I've seen people reach for "cancel culture" when:

1. Fear-mongering the left over perceived injustice.

2. Defending bad takes by tone-policing any disagreement.

Can you point to a comment by john_moscow where they've been 'cancelled'? Or maybe a comment by you?
I don't think you're wrong. There will certainly be some sort of correction of the bullish remote-work spirit.

But the 2020 lockdowns will fundamentally increase the amount of remote work permanently to at least some degree.

Like how before Bernie Sanders ran for president, no one in mainstream US politics was even talking about socialized healthcare. Or how before Andrew Yang, no one outside of silicon valley had ever heard of UBI.

This is hyperbole, but you see what I mean.
By adding payouts into the mix, companies become incentivized to not sell your data if it's not material to them. I go to the store, I buy something. Transaction over. The idea that the store tracks the shit out of me when I'm in the store is creepy enough. I can accept that ship has sailed since I'm in their store.

That the store turns around and makes money off of that browsing data so Facebook can sell me ads for products I lingered in front of, is another level entirely. Thus the data dividend forces the store to truly think through wether or not it's worth it to them to the data. For mega-corp retailers like Target or Whole Foods, they may decide it is (though I'd prefer not), and in that case, since it is my data being sold it doesn't seem unreasonable that I should get something from that transaction. (Unlike physical goods, my data, eg home address/email/IP address/etc, doesn't stop being mine just because someone else also has it.)
> Bakers aren't going to oppose a tax on sugary drinks, but would oppose a tax on baked goods.

This is almost exactly what I wrote, which you claimed I couldn't assert. You just switched my rich-people-who-love-patisserie to the-people-who-sell-rich-people-their-patisserie. Either way, there would be more opposition to doing the right thing, but more opposition does not mean that it wouldn't be the right thing to do.

> Further, why try to change a behavior that isn't significantly contributing to the problem?

But... but... there are obese and diabetic people out there who love cake but only drink Diet Coke. Also, again, "largest source" doesn't tell you whether it's "the only significant source" (say, 90% of total sugar consumed from sugary drinks) or just barely "largest among different groups, if you group them just right" (say, 34% from sugary drinks vs. 33% from pastries and 33% from candy). I don't know which of these extremes is closer to the real values, but I know that only one of them is consistent with your argument, and I haven't seen data to support that.
I'm the author: The board was indeed first released last year, but earlier in 2020 they re-released it with a significant carrier board upgrade, and the amount of supporting documentation and tutorials has also increased, which can be just as important.
I heard a great thought experiment once: would you rather have a stanford degree without the education, or a stanford education without the degree?

20+ years of experience have taught me that anything but the first choice is utterly insane.
I am curious to learn a bit more about how supercomputer scores measure proportionally to "real world performance", which is a hard thing to quantify since there are probably hundreds of different application "types" in the "real world".

Combine this with the fact that many applications are limited by network throughput rather than by CPU/SSD/RAM/PCIE, and performance becomes a hard thing to quantify even in terms of "how many ARM cores do i need to buy to make my CPU not be the bottleneck"

There are benchmarks for ARM linux compilation and ARM openjdk performance benchmarks which are a good start, but I don't know how to compare SKUs between those ARMs and the ones found in top500 supercomputers.
Mass surveillance is ubiquitous. Personal data is a goldmine. Every actor who has the ability to spy on you is doing so and selling your data to corporations and government agencies. Your personal interest in entertainment on Netflix is no different from this. You are being profiled by every online action you take. You are filmed in public and your location is being tracked.