skysight-inc/HackerNews huggingface dataset:
Futures have something called open interest and an expiration. They come into existence because both a buyer and seller are willing to take opposing positions. When this happens, open interest increases correspondingly.

Let’s say you believe btc will rise and you bid to buy one CME futures btc contract at 42000. I am willing to sell (short since, let’s say, I don’t have any contracts to sell) at 42000 and we have now created the future contract out of thin air. Upon expiry money has changed hands between us daily (mark to market pricing) between our futures trading accounts (customer segregated funds at our respective clearing firms to be exact), and price was tied to the underlying (spot — the real btc market) price at all times.

All we did was bet against each other with the “score” being the actual btc price. The “cash settled” part means we don’t touch btc at all, we settle the bet between us in cash. If it sounds too obvious or if it seems like you’re missing something, you probably get it. It’s simple, and there are a lot of complexities underneath the surface (expiration months, cost of carry, contango and backwardation), but at the core it’s just a bet on the price with one party believing price will rise and other believing it will fall. Nothing less or more.

In practice there is interplay between futures and spot markets’ prices, and this opens up a can of worms about liquidity and how futures could be used to “stabilize” a commodity (read up on hunt brothers cornering the silver market for an example of govt intervention into a futures market)
OK, but are your in-laws holding substantial amounts?

A little searching provides options for safe storage:

https://www.coindesk.com/information/how-to-store-your-bitco...

https://medium.com/@nellsonx/how-to-properly-store-bitcoins-...
Another stupid "great" interview idea.

You cannot put someone on the spot like this on an interview. Unless someone has given it a lot of thought, it is not possible to give you a good answer.

First we started with, you are interviewing for Software Engineer, so I can ask you anything from the whole Computer Science curriculum, and expect a MSc thesis level/quality answer.

Now we are moving to even more broader sociology level questions and expect well thought answers? Great.

I am at a point when I am literally getting up and walking away or hang up the phone when the interviewers starts asking things that they are not supposed to be asking.
Do you mean to imply that levying taxes to fund social programs is doing great things to some by harming others?

That is not the only way to view social programs. Or taxes.
At some point the size of the connector TO the vehicle is going to be the limiting factor.
There was a time when the US Congress tried to prevent complexity in financial products. The Utility Holding Company Act limited utility ownership to a tree depth of 3. This was in response to a mess created by Samuel Insull in the 1920s. The Glass-Stegall Act kept banks and brokerages separate. All that ended in the 1990s, because the banking industry managed to convince or pay off enough legislators to get the idea accepted that risk was now quantifiable.

Economists fell for the myth of Black–Scholes. This is a neat way of quantifying risk, but it assumes that risk has a Gaussian distribution. Sometimes it doesn't.
Day 7 – Zero to MVP in 30 Days – On landing pages and prospecting
>The problem is when you want to do something beyond that you will probably rewrite it in something else. And that something else is increasingly being Python.

You aren't going to use your Python code in your Jupyter notebook in production, are you? Jupyter is for exploration and exposition. You're going to have to rewrite it anyway.
Chuwi Black Friday promo party with up to 50 % off
Ah, can't wait for more vids. Description says he purchased that land. Seems like a wetter area.
I was thinking of batteries connected in series with a mechanism to separate the connection during charging. The main connector would be the same. Perhaps this is just not possible with huge batteries?

Edit: Oh I get it...the charging port is what you meant.
It might be unpopular opinion but I totally hate those prepacked triangle sandwitches. Mainly because bread is so bad. When I first time moved to Ireland I was astonished how much people eat them and consider them a regular lunch.
I do not know how reliable this is but it looks legit. If it is true, Amazon spending almost $10 million on lobbying and is the 15th highest spender when it comes to spending. Top issue? Taxes. How is Bezos so f’ing rich? Amazon doesn’t pay any real taxes, prob less than 1%.

I’m sorry but your $20 is not the same as his $100 billion

http://www.opensecrets.org/lobby/clientsum.php?id=D000023883
A16z Field Notes: Devcon3 – Ethereum Developer’s Conference
The Tesla superchargers currently charge at around 2% a minute up until about 80% which is 40 minutes to hit 80%. Tesla is advertising 400 miles in 30 minutes which is 80% of the 500 mile capacity. What is so hard to believe about a 33% improvement over a couple year old tech that is a couple years from release?

Here are current industrial/transportation/residential electric prices in US [0]. They think Tesla will pay 40c a kwh??? What a joke. Sure if you look at constant demand facilities and extrapolate their pricing model with low average demand to megachargers you can come up with a ridiculous number. You can literally run diesel generators and generate electricity for a lower cost. This is so hysterically asinine I can't believe Bloomberg published this article. Not to mention a huge amount of charging can happen overnight when drivers are sleeping and electricity prices/demand are super low.

Pushing a lot of power through a wire is a solved problem. So what they need to push 10x through one connection instead of over 10. We are talking about a modest increase in % charge rates. That is what matters. All else equal you can charge a percent of your battery capacity not some arbitrary fixed number.

This is an embarrassingly poor article. I think the one the worst things about the current tech shortage is now we have all these arts/business majors doing technology writing larping like they know the difference between a watt and an amp.

[0]https://www.eia.gov/electricity/monthly/epm_table_grapher.ph...
I don't know where this was when I was searching for alternatives to vimperator, but thanks so much for mentioning vim-vixen. It seems like it's just a port of the parts of vimperator that still work with WebExtensions but it's so much better than the alternatives out there at the moment.
Since female bees are hard to come by, then it is better for the male bee to be too eager to mate, and sometimes mate with flowers, rather than too discriminating, and sometimes pass up real female bees

I guess they favor recall, over precision.
I'd be curious to see if the Scala version would be just as terse as the Clojure one, of course following the FP paradigm as well as possible .. any resident Scala gurus?
U.S. Readies Trade Sledgehammer for China
UK food sucks. Sorry
I don't think any reasonable person could disagree with either of your first two paragraphs. On the third, though, I think it is worthwhile to examine the good, bad, and ugly of each viewpoint.

I only meant to point out an example of ugliness that sometimes falls out of libertarianism.
Good point. What about the drilling activity in the Dakota's and / or Alberta - Saskatchewan?
Depends on your definition of "handouts". Free cash transfers don't seem to be a successful antipoverty program but what about free college tuition? High education levels strongly correlate with above average lifetime incomes but you can't expect poor mothers to feed their children on college degrees. I guarantee you even the most ardent proponent of regressive taxation schemes has some pet govt benefit they consider not a handout but a right.

As to the second, it's an interesting idea. Everyone complains about the NYC MTA but for $2.75 you can traverse the entire city -- even with delays it's a steal. People are definitely disconnected from the price vs reward of public transit.
it was a clone of Tatra

http://www.porscheprototype.com/adolf-hitlers-manager-ferdin...

Third Reich did the same to Czech tanks after invasion.
Thanks.

Is there some distance from the caldera where crust disturbance would definitely not be a factor? 1 mile? 100 miles? Greater?
Would there be any salt-water injection without drilling for petroleum or natural gas?

One follows the other.
He's not lying. He's referring specifically to Jupyter. Read it again.

That is, consider it as a reference to the specific imitations that started appearing 25+ years later.

I mean, this was obvious to me, but I'm not sure if it's because you're trying to be particularly uncharitable to him for some reason.
So you nailed down the specific part that I wasn't grasping in that paragraph: the "Bitcoin Reference Rate". Again, this is an area where I'm horribly naive and wouldn't imagine investing in (partly because I don't have enough knowledge around how futures markets, in general, work/behave and partly because I do understand Bitcoin). However, if what they're trading in is the "Bitcoin Reference Rate", isn't this really a future trading in this "Bitcoin Reference Rate" rather than Bitcoin? Does that even really matter, here, or is that an irrelevant detail? While Bitcoin isn't treated like an actual "currency" (outside of those of us who think of it as one, it appears the financial powers-that-be think of it like a traditional security/commodity-like instrument), are other currencies handled in this manner -- or any other futures product for that matter (i.e. is this common or is this something that is very unique)?

Oh, and thanks for the offer to explain -- it's much appreciated. :o)
The Muse is hiring a junior cloud engineer
Look at charging rates in watts (watt hours per hour) instead of in percentage; those semis have much larger capacity batteries, so they need a higher charging rate in W to charge 80% in 30 minutes than a vehicle with a smaller battery.
Thanks for the pointers on where to start looking. This is helpful.

The modern “factory farming” is not something I care to defend for any intent or purpose. It may as well disappear tomorrow, as far as I am concerned.

However, I still see no argument against deeply caring domestication of a small number/herd of animals, providing them food, shelter and care in exchange for milk or unfertilized eggs. Can’t seem to find a convincing argument against that in my current ethics framework.
IIRC TX state law defines a bicycle as having two wheels, pedals, and no gasoline engine but includes electric. As far as I could find when I read the law it does not include trikes at all, meaning they qualify as mopeds or motorcycles.
Rossi E-Cat QX Demonstration (Nov 24, 2017)
Established companies keep their stock price high by being conservative. Startups/growth companies keep their stock price high by pushing the envelope.
I never thought about that when I watched the movie. Technically the rule is that you were never allowed to feed the mogwai. He didn't specify a time range that was safe.
In the case of a truck, that seems less likely -- surely they could come up with a design that hooks in 2, 3, 10 plugs the moment the truck is ready to dock.
> It seems to me that the people that feel constrained by this are not the majority of the people in China.

They would be insofar as most people aren't performing the action of "investing" their money at all, but are rather handing it off to money managers (e.g. mutual funds) to invest. Those money-managers are then limited by the the capital controls—not at the $50k level, but still at a level low enough that it prevents prevent globally-efficient investment to best grow private citizens' wealth.
The quote is wrong.

First of all, supercharging was never 'Free' - it was a $1,000 addon option (at purchase, or $2,000 later) for a long while before finally being made standard. (The hardware was integrated into all models shortly after launch, but cost money to activate)

Secondly, they killed the unlimited free charging program for new cars as of this year. (April, I believe was the cutoff for delivery of vehicles with unlimited supercharging)

The motivation for killing the unlimited free charging program seems to be partly people who would never charge at home, instead always charging at superchargers and often leaving cars parked for hours in busy locations, and the increasing commercial use of the supercharging network (by taxi companies).
> Can it be reached by a nearly empty payload on a Falcon Heavy or BFR certification flight?

Not even close. I don't think it's sunk into most hobbyists just how ridiculously fast ʻOumuamua is going. The fact that it came in at such a deep hyperbolic trajectory means that it's substantially faster relative to us than literally anything we have ever seen in the solar system before. Catching up to it in a human lifetime is a more demanding mission than anything we have ever done before, by a factor of at least two. It's honestly outside what traditional rocketry can do, to put a probe on it we would likely have to try something exotic like sun-diving solar sails, laser sail propulsion or at least nuclear electric propulsion.
On a very basic level, I get most of that. But in the cases you mention, you're actually buying a contract based in the actual asset/security you're targeting. In this case, it sounds like you're buying an asset that is priced based on the asset/security (BTC) but that outside of that price doesn't involve actually doing anything with BTC. Is my assessment here completely insane or am I somewhere near understanding what I've read in that article?
Books referenced the most on gamedev.stackexchange.com
Can't you just have multiple super-chargers charging different banks of batteries in parallel?
End of an open source era: Linux pioneer Munich confirms switch to Windows 10
How HTTP2 Push and HTTP Preload Differ from Each Other
> For example, I've seen John Kasich write for the Washington Post Opinion pages. But most people expect Washington Post to be a liberal outlet.

LOL...most conservatives I know consider Kasich to be a liberal ;)
The one takeaway from futures trading is that you probably don’t have enough risk capital to do it right. Professionals use large risk capital bases and have access to better information. Retail traders who don’t know better sign disclosure forms then overutilize the generous performance bond requirements, mathematically ensuring most will perish.

This is probably the most practical takeaway that I can share with you, and it’s why they’re considered so risky. Leverage can kill.
Did you seriously just compare rates by percentage across different batteries of probably different capacities? Anything to save face for Tesla I guess.
An underrated field these days
How can a single coin attain $100,000 ?
Security Trails
He lived the majority of the time alone with the occasional visitor who took photos. Thats what your missing.
I removed all those behaviors from the touch bar after I accidentally triggered Siri for the thousandth time. Doing that means the touch bar is black most of the time but has made the keyboard easier to live with.
Didn't see any mention of MTU in the post. If the defaults were sub-optimal for OpenVPN, that alone would account for the reduced throughput.
Excellent books listed there. Curious about the method of extracting this data.
That requires a really big plug. Like this one, 400 amps at 440VAC, three phase.[1] There's a standard plug for plugging large ships into shore power. Truck stops are going to need high tension lines coming in.

[1] http://www.cooperindustries.com/content/public/en/wiring_dev...
"should essential city services be subsidized by the wealthiest citizens"

It's interesting you bring up London's congestion charging scheme. The burden of that scheme doesn't fall on the wealthy: they live within the congestion charging zone and are thus entitled to a 90% discount (i.e. they pay just a tenth of what we South Londoners pay). And they can afford to take taxis, which are too expensive for most people, and are exempt from paying the congestion charge.
As one of the other commentators mentioned (and has been called out a few times), in the case of other futures, you are actually settling them with the commodity in question, but in the case of this product, you are settling with cash. I think I understand what you're saying, and I don't think I have any fundamental problem with it -- mainly because I don't invest in the futures market so it's simply "unimportant to me" how it works in this case -- but I'm curious: is this a normal practice?

Is it more common for a futures-based product to be settled with the product it's based on or is it more normal for it to be settled in this manner?

My curiosity, if the way they're executing on this is unusual, is "why"? I mean, take oil futures as a good example. It'd seem a whole lot easier to settle a BTC future with actual BTC than to settle an oil future with actual oil, so why isn't it the other way around? Heck, why wouldn't all of these futures-based financial products be handled in a cash-based manner -- what's the downside? (I'm not arguing for or against either method -- I really don't know).

My apologies if these are truly stupid questions -- I imagine I sound to someone who works/studies this sector like people sound to me who think "Facebook" and "The Internet" are interchangeable terms, but if you're willing to play along, here, I certainly appreciate it. :)
Truckers are even required to take a federally mandated 30 minute break[0] during the day, during which the truck can be recharging.

Industrial applications already consume much more power than an entire Megacharger site, so supplying the charger with power is an already solved problem. Getting power from the charger the truck is again, a solved problem in the industrial space. I can order an off the shelf industrial connector [1] that does 1000v @ 400A, which means you might need two of them. Truckers already use 2 pumps to fill their truck, so even that is not out of place.

[0] https://www.fmcsa.dot.gov/regulations/hours-service/summary-...
[1] https://www.connector-techals.com.au/manufacturer/rauscher-s...
No your assessment isn’t insane; instead you’re visualizing how they’re related and it’s important to understand it.

CME does daily mark to market pricing so the futures price will always fall back in line with the “bitcoin index” which is based on the actual spot market.

CME futures typically close once daily for a brief time (each market has its own schedule) and price settlement (the price adjustment) occurs around that downtime. This is distinct from most btc exchanges which as far as I know, operate round the clock (could be wrong on that point, I don’t actively use various btc exchanges).

If someone were to sell a whole lot of futures and drive the futures market price way down relative to the spot market, another participant could then come in as a simultaneous buyer of the futures and seller of the spot market, pocketing the difference knowing the price will be marked to market daily. Such a natural force helps to keep the prices correlated in soft real time.

Beyond that you’re correct it’s just a way to gamble on the side :) nothing to do directly with real bitcoin
Ask HN: What is your opinion on Bitcoin cash vs. Bitcoin in technical standpoint
Bitcoin cash is betting on, onchain scaling that is presently working and Bitcoin is betting on keeping the 1MB blocksize and introducing lightning network. What do you think are the pros and cons of both approaches. Which approach enables better decentralization and how?
They don't have larger capacity batteries. They have batteries with more cells. Sure, the total charging rate is a higher Wattage, but you can charge cells in parallel.

The scaling here is exactly the same as with the "larger battery" versions of the Model S having more horsepower; higher capacity = higher throughput when you're dealing with battery banks.
Could be whether you learned to type on a typewriter or IBM model M keyboard versus something considerably more recent.
Of course I did. Why wouldn't I? They are all battery PACKS. Maybe I didn't make that clear but I think that is a well known fact that Tesla batteries are made up of a collection of cells.

You have 100 of battery X and you go to 1000 of battery X you can charge 10X more watt hours but the same %.
my read as well. waiting for others to weigh in to see what I am missing.
Sorry I forgot that random internet posters actually believe their opinion matters.
The correct term is “disrupt”.
23andme was invaluable to me for health, but that is rarely the case. Most likely you won't learn anything profound from it, though if do you learn something important it is probably not going to be good news. I personally much prefer that I know my results now and be able to take action to address them than to not know, but I am also able to take a sort of stoic view toward it without worrying about it and allowing it to impact me negatively. Many people would rather remain ignorant of potential risk factors which may actually never impact them than worry their whole lives about something outside of their control(at least for now. CRISPR?). It can severely disrupt the lives of some types of people and cause them anxiety. So before you take it you should ask yourself if you are the type of person who would worry and obsess over it and allow it to disrupt your life. Though if you do find unpleasant results, most genotypes, with a few exceptions, are only weakly correlated with their risks so don't take most of the results too literally. And even for many of the genotypes with very strongly established links to disease, most are only risk factors, and only increase the probability of an outcome.

I don't think 23andme is currently reporting on health risks anymore until they get things cleared with the FDA, though, and the other reports they currently offer are not really useful. You still have access to the raw data, though, and can use a third party like https://www.snpedia.com/index.php/Promethease to analyze the data. It will generate a report for you, but remember these reports will try to link your SNPs to pretty much any studies available, even when there is very little evidence or low confidence of the interpretation. Don't take most of the results seriously unless it is well studied and well established. This may be difficult to determine sometimes unless you have a background in science or medicine, and it is a good idea to consult a medical professional first if there is something that you think is significant and concerns you.
HydrOS Project: A massively fault tolerant operating system
For anyone that thought that Microsoft was changing its ways, that should be a big warning:

> Even worse, the new Windows 10 S operating system prohibits the installation of any apps which do not come from the Windows Store, so it is impossible to install Firefox on devices running Windows 10 S.
Blockchain 3D Explorer
> what about free college tuition

I love it! However, if we can afford to make college tuition to people making under $x, I think we can make college tuition free for everyone without checking for their income. (This is my main objection to the New York state scheme. They can make it so only NYS residents are eligible but we should drop the income requirement.)
Have you tried a finer resolution display, and moving your display further away?

Eye strain will be notably reduced if you move the display 3 feet away from your eyes (requires less convergence and less accommodation), and at that distance 220 ppi starts to have pixels that are close to indistinguishable, even for folks with 20/20 vision.