skysight-inc/HackerNews huggingface dataset:
Show HN: Early version of trading simulator game. Would love your feedback
We're two software geeks trying to build our own trading simulator app for beginners which could teach some basics of technical analysis and won't be too boring.

You can join the early test program here if interested:
https://threeinvesteers.com/

Do you think this is a decent idea?

So far we've solved the main technical challenges and built a solid backend solution for real-time prices, and also got the first feedback regarding the concept from some early users.

We've polished the idea slightly using the feedback but still have some open questions.

Would be great to hear your feedback.

The problem we'd like to solve

Traditional paper trading is nice to test out a platform, but apart from that, it doesn't teach you much.

If you can go all-in without consequences, there is no reason not to just “gamble”.

Nothing to win, nothing to lose creates totally different psychology from real trading.

Here's our upgraded idea

A trading simulator for beginners with real-time market prices (stocks, FX, crypto) where users have limited chances to perform wild YOLO bets and are motivated to learn something.

How we could do it

1. Motivation. To boost motivation, three top-performing users receive real money prizes (probably Amazon gift cards) each week.

2. YOLO management. To avoid users making reckless bets that leave the results almost essentially resting on luck rather than skills, we could implement the following things:
Trade size capped to a max of X% of available cash.
Leaderboard rank not using plain returns, but risk-adjusted returns or/and by setting a max drawdown limit.

3. Learning.
Users gain initial & extra game money by completing educational quizzes.
Interactive pattern recognition training module, where users are presented with selected trading setup ideas on live charts (pattern, S&R levels, trendlines, MAs, etc.) and can test them by placing simulated trades. This way beginner users could learn a thing or two of what goes in a trading setup. Also, they could get a reality check when seeing that even good-looking setups can often fail... without burning their student loan.

What I'm still not sure about

To pay for the market data and prize money we would obviously need some form of paid features.

What could be a good and fair option, in your opinion?

A small participation fee or perhaps some in-app purchases like more education materials and quizzes, a wider choice of assets, extra leverage,...?
https://www.opensourceecology.org/gvcs/

This is a neat concept - bootstrapping civilization is a matter of knowledge. Learning and documenting processes that can achieve food, shelter, clothing, and the like is an exercise that can actually help people in developing parts of the world, and can inform things like Moon or Mars colonies, or provide inspiration for sustainable development.

An offline, e-ink Wikipedia could be useful from a shtf perspective, but it'd also be cool to have around, just as a Hitchhikers guide to the galaxy type thing.
See also https://briananglin.me/posts/spending-5k-to-learn-how-databa...
back in my day we called them shitposts
Just scratched the surface, no extensive experience with it. Python is what I use at work, but I miss the Pharo environment a lot. It was forked from Squeak, and indeed still evolves at a fast pace. I think one of the reasons for the fork + name change was to give room for breaking changes from the Smalltalk roots. But it's still mostly compatible.
The MDN compatibility data says IsNaN was in node as of 0.10.0, which was released 2013-03-11. NPM says the library was first published 2014-09-21. And the library uses isFinite which was added in the same Node version. So... not really, no.

Anyway, my point wasn't so much that the code is an outrage, more that should anyone stumble across this comment thread they know that there is a much clearer and more obvious way to check for IsNaN than using x-x===0.
Likely not:

"Healthy boys may be more likely to be admitted to hospital with a rare side-effect of the Pfizer/BioNTech Covid vaccine that causes inflammation of the heart than with Covid itself, US researchers claim."

https://www.theguardian.com/world/2021/sep/10/boys-more-at-r...
Also went thru this recently and I can empathize with you. Particularly concerning to my situation is the repeal of deduction for alimony payments (enacted in the Tax Cuts & Jobs Act of 2017, enforced beginning 2019). It really screwed primary earners over in divorces.
shouldnt be to hard to verify the sudden deaths of celebrity athletes..
Is that the same guy who was talking about how much work it is maintaining 200 repos?
I must be crazy because I still prefer regular Make to CMake. It seems like CMake tried to fix autotools problems (which were not Make's problems) but then created new problems of it's own. Why is setting an install prefix so complicated when it's the ONE option that almost everyone wants? Why the case sensitive name ending in .txt?

And CMake still seems extremely C/C++ focused. I don't want a language-specific build tool anymore. Heck, I'm not even sure I necessarily need a build tool so much as a generic task runner with patterns and complex/dynamic dependencies.
Running a FREE weekly newsletter for early stage startup founder and entrepreneurs- with hands-on business tips.

https://startupbusinesstips.substack.com/
Yeah, it’s a market problem. We disagree on the solution but agree with the problem: there is no incentive to innovate.

Perhaps the government stepping in is better for the societal “greater good”, I’ll have to think about this and come to a personal conclusion.
Interesting how a modern USB Bluetooth dongle is more powerful than a proper computer from 40 years ago, and much smaller as well.
How is "powered" defined here?
That is not "provably more secure or stable". I think it's pretty safe to assume that maintainers backporting security fixes is more secure than just not updating at all, but even that isn't proven. It being more secure than updating is much more questionable, and is probably going to vary greatly between packages.
There's still room for an is-odd-and-even package.
With matrix you can run your own server. So you are in control of when the server goes bye bye.

Of course yes, if you are using "someone else's" server then you are the the liability of that provider, just like any other centralized provider.
*seen brandishing

At the very least. Not just carrying.
That's probably most programmers, but they too should at least have an idea about what the datastructures they use mean and what properties they have.
People who play professionally are a very different population of people than what this study was looking at.

This study was looking at Plants vs Zombies: Battle for Neighborville and Animal Crossing: New Horizons players from the general population.

Also note that I didn't claim that gamers were "fat and lazy" as you suggested. I doubt that they exercise at a rate higher than the general population. I would guess they probably exercise at a rate similar to the general population, particularly because so many people play games.
That's one way to look at it, the other is that they will game whatever incentives you put in place at your company to your detriment.
its just a prank bro
I mean the first guy who did it on the creativity, maybe the first 10, but nowadays that just means you can't think of anything else to boost your profile.
Add "Show HN:" to your title...
On the math page that he linked he has some ideas:

> 1) When you get older math got harder.

> 2) When math got more abstract it got harder. Blame Grothendieck.

> 3) When math stopped being tied to the real work it got harder. Blame Hardy.

> 4) Math has always been hard. We NOW understand some of the older math better so it seems easy to us, but it wasn't at the time.

> 5) With the web and more people working in math, new results come out faster so its harder to keep up.

> 6) All fields of math have a period of time when they are easy, at the beginning, and then as the low-hanging fruit gets picked it gets harder and harder. So if a NEW branch was started it might initially be easy. Counterthought- even a new branch might be hard now since it can draw on so much prior math. Also, the low hanging fruit may be picked rather quickly.

Personally I think it is mostly 2 and 3. And a lot of it has to do with how math is communicated. The very abstract way that math textbooks use to communicate is not how most mathematicians think when solving problems. A lot of things I struggled to learn from books became much more understandable once someone gave me the little insight I needed to make sense of it in conversation.
Anecdote: Not directly relevant, since we had different goals, but...

I had the same realization, at around age 28. Had a BS (both meanings) undergrad degree in applied science.

Path:

-Math fundamentals on Khan Academy. Videos, exercises etc. Algebra, trig, calc etc
-A barrage of science classes for a few years on MitX, only after I was comfortable with the math. Physics, chem, bio, biochem, QM etc Lectures, excercises etc.
- Got more aggressive with personal projects applying these. Ie transition from learning fundamentals, to applying them to practical problems.

It's not too late! It gets harder with age. EO Wilson (famous biologist and ant expert) described taking calculus for the first time in his mid 30s, and having a struggle.
I'm very curious where the current hype for a Web 3.0 originated from.

One thing I notice among the crypto circle is how lock step all the hype building and talking points are. Within the last few weeks, all the people I personally know who are crytpo fans are suddenly talking about web 3.0 when they've had no interest in web technologies prior.

Is there a prominent set of influencers who recently published some content regarding it?

The hype seems to have come out of seemingly nowhere, though largely on the tails of Meta's recent presentation. It just seems really odd that so many people are saying the same things so suddenly without any concrete technology advancement backing it up.
Pretty much sums up the state of logical reasoning nowadays.

Extraordinary claims require extraordinary proofs. The standard in this case should be to find a proof she lived that long, not a lack of proof she faked her age.
McCLIM runs on Linux, but it has tools like debugger, editor, listener and others written on top of it. Applications are possible. The UI is similar to that what a Symbolics had. It can serve as the UI part of a larger solution like you mentioned, where some services are provided by Linux, or tools on top of Unix (database, etc).
German Ministry of Information Security leaked one of its PGP private keys
The common thought seems to be that large scale decentralization can only be achieved with the kind of incentives cryptocurrencies provide (i.e. people get rewards for running their own nodes). You mention IPFS, but they actually implemented Filecoin a few years back as a way to incentivize storage.
> I hear this all of the time, but the people and projects “reshaping the economy and politics” are rarely ever named.

I don't know about politics, but there are definitely coins reshaping the economy. Hell, bitcoin by itself is reshaping the economy, being considered by many major institutions to officially be a new asset class now[1]. It doesn't mean a total replacement of the economy, if that's what you're thinking, but it's definitely reshaping it.

DeFi is already taking a nice chunk out of central banks' lunch. Celsius, USDC, BlockFi, etc, are able to credibly offer 6% or higher yield[2], whereas banks can only offer, at best 0.6%, nowhere close to beating inflation.

That's just two use cases, and if I had more time this morning I could go into more (didn't even touch on smart contracts at all). Wouldn't be surprised if you'll dismiss them out of hand as bad projects according to whatever internal criteria you have, and if so, I don't think you'll ever be able to convinced that anything a good project.

It just gets annoying to hear people dismiss the entire space all the time without spending more than a few minutes looking into it, and/or assuming that the space never evolved from 4-5 years ago, where you could safely make those claims.

[1]: https://ca.finance.yahoo.com/news/bitcoin-is-officially-a-ne...

[2]: https://defirate.com/usdc/
I 100 agree with you. I just posted a comment saying the same. The hype machine for it just came out of nowhere and ramped up fast
Sure this media hit job turned out to be an obvious lie, but my convictions towards the others remains unshaken!
Personality Type, as Well as Politics, Predicts Who Shares Fake News
Yeah, while we shouldn't dismiss it completely we should wait for more resources to report the same data.
I wouldn’t recommend EVs yet to people outside of major cities (in the US anyways), but that’s also only a small fraction of people.

I’m also not a Tesla stock holder, nor am I a Tesla owner, nor do I have any interest in owning a Tesla. I’m just someone who owns an EV and is quite happy with it, and feel like it’s world explaining what it’s like from first hand experience myself.
function isOdd(i) {
return i > 0 && isEven(i - 1);
}

function isEven(i) {
return i == 0 || isOdd(i - 1);
}
Infrastructure as Code – Crash Course
Who wants to make an is-not-uneven package with me?
Well, the libraries included at runtime from cdn are still minified. It’s only the app code that is gzipped and not minified, and it is only the very largest projects where minification will make a meaningful difference for the app’s own (not library) code. There is usually no point to minifying the app’s own code.

As for tree shaking. When using lightweight libraries meant for the no build path this isn’t necessary because these aren’t pulling in lots of dependencies. Preact is tiny and is a good enough react for my needs.

I wouldn’t recommend this approach for large web apps, but most web apps are small enough that a no build tools approach seems viable to me.
And then their sign-in page doesn't truncate it and it just fails to login... Absolutely love it!

One of my favorites was Nintendo's user account. The web allows decent passwords when created, but then the actual game console only has room for inputting 15 characters or so for the password :@
They could, but FIFA athletes are among the least sedentary people on the planet, so it's not related to this.
You have to wonder what the six backwards incompatible changes were.
Sorry but I cannot take seriously any programmer who uses the package deliberately.
Which legitimate projects are you referring to?
glad to see you here and agree to all the things said

btw. if you want to build a proper widget like that in the future, i’d be happy to help! (@mishushakov:matrix.org)
There are huge regulatory and societal roadblocks for crypto to be used as envisioned not as present during those other cases of wide technological adoption.

For crypto to be valuable, merchants need to use it. Transactions need to be cheaper. A stable decentralized financial system needs to emerge.

The use case is a world without central banks and central currency manipulation.

People who don’t see the use case don’t understand the scope of what direct exchange of currency without central management entails.

There are arguments against that world and in favor of central currencies. The roadblocks are enormous, maybe insurmountable. And perhaps that world would be worse or lead to more authoritarian control rather than less. But I don’t think anyone who believes in the potential denies crypto will take time to have a lot of mainstream use simply because the main use case is so large.
> Trial and error?

Bingo. Super frustrating.

See also this comment: https://news.ycombinator.com/item?id=24827031
Most books on Software Engineering are mere compendiums with nothing much to recommend them eg. the texts by Sommerville or Pressman. Two exceptions that i know of are those by Ghezzi,Jazayeri,Mandrioli and Pankaj Jalote.
Webpack-Config-Plugins
Bootstrap a webpack project with 0 config!
I meant saying life is beautiful like non-depressed people.

Yeah may be different types of depression. I'm talking about the quote. Life is not all happy thing, some people know this and want out of this; which they are forced with to live until dying horribly, most time it's horrible sad death honestly. Acknowledging true nature of life and not wanting to continue the misery is not illness.
Yes, we should ignore it until we have trusted independent verification. It would be impossible for us to assess the credibility or accuracy without a third party that I trust and hopefully agree with.
> From a read standpoint, all data is essentially open source

Unless you encrypt things you put on blockchain. Or use clever ways to hide information from others. There are cryptocurrencies like Monero.
From antirez there is load81[0] which does kind of the same and it's lovely for playing around with installing 1 thing, playing a game, breaking into the source and changing code on the fly.

[0] https://github.com/antirez/load81
Social Media: Influences and Impacts on Culture
Atlas offers serverless today
Seems like it ought to be possible to run the client in the browser too and do everything locally for a demo.
Matrix doesn’t have this
Activism on these issues get stamped out by the wealthy. Look at what happened to Bernie and Occupy Wall Street.

It is not a matter of lack of passion or organization. It is a matter of corruption.
Because web3 is, in part, about users having ownership and crypto is what enables that in a decentralized, censorship-resistant way.

Instead of big tech companies profiting off your data, you can profit off your data and output. A critical thing that decentralized networks have solved is the alignment of interests between the developers, the users, and the platform creators. They all share in the success of the network and you can build on it. Facebook, Twitter will deplatform you when you get too successful building on their API or for a host of other reasons. They can and do change the rules at will.

Web 1.0 - Read-only.

Web 2.0 - Read & write.

Web 3.0 - Read, write & own.
Sorry, I misunderstood which isNaN you were talking about. The global isNaN has unexpected behavior in certain edge cases[1], so that's probably why the library author chose to avoid it. Number.isNaN doesn't have that behavior, but is not supported in IE.

I agree most people these days should just use Number.isNaN, assuming they don't need to support IE.

[1]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Refe...
this tech will present many challenges. it could make many political problems much worse. but it is also unstoppable.
I don't have much to say other than your landing page actually told me exactly what I could do with Budibase, which seems to not happen as often as I would expect. I always check out new stuff like this, and I'm often left wondering how this new thing works. Nice work explaining what you do! It's not something I'd likely need, but at least I know what it does.
Yes, but it's not a "halfway decent" standard library because it does not include so many basic things that would be expected to be in the standard library.
Not celebrities, but likely junk all the same
I see your point but I disagree. The solution is having a standard library (even very small), implementing basic features that the language is lacking but are terribly useful and basically everybody implements them on their own (or just import a package as it seems). Other languages managed to do it somehow (with better or worse results), why the JS community can't?
Samba TV S-1
I think it's wrong to say that technology can't affect societal problems. Isn't all encryption technology a workaround for the societal problem of maintaining privacy? As another specific (but admittedly contentious) example, consider how Uber supplanted the taxi monopoly with a technological workaround.
Does MySQL (or PlanetScale) provide a way to input a query and get a lower/upper bound on the number of rows the query will "inspect" when run?
> I assume there was some additional context about the order in the form that the restaurant filled out, to assist in the end-of-month bookkeeping?

You assume that bookkeeping in restaurants is diligent. Which, er...

I reckon they were more than happy to just take the cash and apply some creative skills later on.
An alternative could be to build SBCL into a unikernel.
So maybe the PineTime watch[1] could also run doom, it uses almost the same SoC except with less RAM and flash

[1] https://pine64.com/product/pinetime-smartwatch-sealed/
Another point this raises is approximately identical to the headline question, so that if there is such a thing as good judgement there is also good taste and vice versa, and they will fail in similar ways related to subjectivity.

I feel this even dilutes the situation further because the moral questions of judgement are often out of place or under questioning in works of art.
Yes, you can.

https://www.bitrefill.com/buy/petco-usa/?hl=en

They don't have it at the payment terminal directly yet, because of the stigma you and others still have against cryptocurrency.

But after this cycle, the news will have normalized it enough that you WILL pay for your dog food and Taco Bell with Dogecoin — I'd bet 10 DOGE on it.
I had found some good ones in a local library and had read them there itself while taking off from work without telling my spouse. There was no opportunity for me take these home for reading and nor create any electronic record. Life was just too tough, as you can see.

Here are some recommendations. Only the first one qualifies as a 'particular' one.

1. Human Relationships, Steve Duck. I had read the first edition and found it very insightful.

2. Another one that was very helpful was focussed on when it is the time to quit. I have linked a few similar ones below. The one I had read had a quiz after each chapter. I recall that for the first one, it said that a score of 3 out of 10 indicates your the situation is nearing borderline. (My score was 8, i.e. well past.)

3. There were several on the topic of divorce. These often include advice on the above as well.

4. There was one on how children react to such situations.

I had also read some that talked about how to save the marriage, etc.

For item 2 above:

Stay or Go: Dr. Ruth's Rules for Real Relationships
https://www.amazon.com/Stay-Go-Ruths-Rules-Relationships-ebo...

Should I Stay or Should I Go: Surviving A Relationship with a Narcissist
https://www.amazon.com/Should-Stay-Surviving-Relationship-Na...

Should I Stay Or Go?
https://www.amazon.com/Should-Stay-Go-Controlled-Separation/...
10,000,000 liters per second flowing past the cable.
If you feel that you belong to that corner of Africa, why you are still in US and not on the route to your homeland? No one is barring you from leaving US! Though, I wonder - what are the people you are going to identify with - descendants of slavers, that massacred tribe of your long gone ancestors?

Not long before Europeans appeared in Congo basin, most of the local natives of area were robbed of their lands by new arrivals of taller black people. Their co-existence with these new masters is nothing less than slavery even in modern times. I wonder... how deep is that box of Pandora, that you want to open? Are you ready to pay for sins of your ancestors or is this exclusive thing to Whites only? Are you even aware, that significant part of Europeans in US initially were brought to US as slaves?

Europeans did not brought slavery to Africa and neither to US, where locals were happily enslaving each other. 500 years ago before arrival of Europeans with rare exceptions, any society in Africa had slavery. History is unpleasant, but that has hardly anything to do with ongoing war, that has reached heat in modern US. Btw, Hitler also eradicated Jews with the exactly same ideas about Aryan race, but you might need to get past 500 years in your history book to realize that.