skysight-inc/HackerNews huggingface dataset:
Wouldn't they write 6 foot 11 inches as 6.11 (eventhough it's confusing and wrong). Because that would make it 2.10 meters.
I prefer to use Homeland Security: $60.8b budget for 2013
While the "51% attack" [1] allows an adversary to control the block chain, she can only control which transactions to include and which not to include, so in the worst case bit-coin transactions can be (selectively) shut down.

Doing transactions on behalf of other users' accounts is not possible, as accounts are secured using public key cryptography (via elliptic curves) [2]. Only the creator of an account has the private key that allows her to sign valid transactions.

Nothing hinders the entity controlling the block chain to include invalid transactions that aren't properly signed, however all the other bitcoin clients in the network still verify the blockchain when downloaded, so those invalid transactions won't have a visible effect on users of the Bitcoin network.

[1] http://mineforeman.com/2012/12/10/want-to-destroy-bitcoin-i-...

[2] http://blog.ezyang.com/2011/06/the-cryptography-of-bitcoin/
You could technically encode an message within the 8 decimal places.
Oh, sure, not saying people shouldn't buy them. Just commenting on the pricing from the point of view of cost added by Xeon.
Could Facebook be storing the email addresses/phone numbers in hashed form? They should not need to hold onto the cleartext one, and if it's hashed, there's no temptation (or danger) of it being used to send unsolicited emails.
The reason this will never be built is because it's incredibly unproven. At least with HSR the unknowns are sort of understood and the costs can be calculated. Nobody knows what the unknown costs are with Hyperloop.

Not to mention safety. Nobody is going to just trust Musk to say it's safe. There will be a decade of trials to test it before it even gets green light approval for a small practically useable section.
Please note that we've also worked on a companion framework named GameFX: http://blogs.msdn.com/b/davrous/archive/2013/07/23/introduci...

As Babylon.JS, it's open source, mostly done on our free time and works well on every platforms supporting WebGL such as Chrome, Firefox, Opera, Android, Firefox OS and of course IE11 (win 8.1/RT).
I think it's his all-electric jet in the back of his mind.

http://www.bloomberg.com/news/2013-08-08/elon-musk-just-may-...
> You can hardly blame SDL for this, games are not really what X11 was designed for.

It's funny how the Windows version of the game usually works just fine in Wine, minimization and window switching included.

> Setting up full screen and asking for exclusive access to the keyboard will prevent the window manager from doing anything to it.

Then why are they asking for exclusive access to the keyboard in the first place? X has rich input protocols (XInput2 was recently designed).

> Since you have not checked whether this is actually the situation

True, but I have read the changelog, and it doesn't mention any of these two annoying problems to be fixed. Part of the reason I made this comment is to see if someone else knows whether they were fixed.
New CDN77 datacenter in Delhi, India
I use ".." to go up one, and ".. 3" to go up 3. Source: http://alias.sh/cd-number-dirs
> it was just a newbie's experience with running an affiliate program

No, quoting actual sales volumes, conducting experiments with different commission rates, and measuring and reporting on new customer traffic take this from a newbie's anecdote to a useful, insightful article.
A Sneak Peek at the Next-Gen Exascale Operating System
Good idea. However, there are lots more investors in the LA-SF region. This proposal is also a hack around government rules. This 'bid' is 9% the cost of the train bid, and there is already a government budget for it. The companies now have a track record of successul government bids (tesla paying back the loan, and spacex successfully sending rockets into space). SF,valley, LA types have been very supportive of tesla, and spacex - so I think they'll also be supportive of an innovative train replacement.

For these reasons I think this proposal is brilliant. It's a hack on government, business, media, and engineering all at once. As well, it's something the customers would prefer. Well played Musk.
It is a limitation, but when your other choice is "not working at all, pain, depression, despair" having to work at home is the least of your problems.

I have a grimmer point to make: Working out of crappy half-assed "startup incubators" with lousy desks, lousy seating, and an atmosphere flavored with stress was a direct contributor to my own RSI problems. You might not want to wait until you have symptoms to conclude that having an actual desk and some quiet is a good idea.
Larry Ellison - ‘we already know’ Apple without Jobs
Cool site! You have Australia's country code as AS - it's AU. (eg type Melbourne Australia to replicate).
Cheers!
In most practical ways Hyperloop is a train. It has a fixed unchangeable route that can be blocked by a single carriage. Without a massive network this will only be of value to people who happen to want to travel that particular route. The world has a long history of new methods emerging and they often fail in the long run. In Britain we had a canal boom, then a rail boom, and most of those routes are now closed or obsolete.

It would be better to concentrate on increasing public transport in the road and air. Build a separate road network for freight and coaches. Make energy efficient airplanes that can fly short distances quietly and land on short runways. Build systems to automatically route parcels to make same day delivery possible. This would create a network that would be much more adaptable and complement what already exists.

Rail is like dial-up between a few key points that ignores existing networks that could be upgraded. Hyperloop is just a faster connection to a dysfunctional network.
> I'm not sure that MRI even allows for parallel processes in its green threads due to GIL?

The GIL has no relevance when talking about processes. The GIL affects simultaneous execution of threads on multiple processor cores. It also does not prevent concurrency for threads or fibers. What it does prevent is for two system/kernel threads to be executing the Ruby interpreter code itself on different processors or cores at the same time.

This is generally not all that big of an issue, as e.g. any C extensions that are thread safe can tell the VM to yield from the thread that calls it, and any Ruby thread that does IO etc. will also be put back in the waiting queue and so won't hold the GIL.

> Other Ruby implementations might have different restrictions there.

jRuby, Rubinius and MacRuby are all GIL-less as far as I remember.

> Also, as Edward mentions in his post on reddit, speculative parallelism is a Haskell one-liner.

It's a little bit wordier in Ruby, but not much. There may better ways of doing it, but this spawns the "guess" thread (g), then spawns an "actual" thread (a), that if it finishes first will kill the guess thread (otherwise the guess thread will already have terminated, and the "kill" will do nothing. The main thread then waits for the g thread to terminate, either with a result or because it was killed. We then just try to kill "a" because we know either g terminated first, or a terminated it after it had finished - either way a is not needed any more. We then return whichever thread local variable has content.

def spec guess, actual
g = Thread.new { Thread.current[:ret] = guess.call }
a = Thread.new { Thread.current[:ret] = actual.call; g.kill }
g.join; a.kill
g[:ret] || a[:ret]
end

This requires "guess" and "actual" to be any object with a call method, which includes Proc/blocks/"lambda" statements (or "->" in Ruby 1.9). E.g:

puts spec(-> { sleep(3); return "GUESS" }, -> { sleep(1); return "ACTUAL" })

In MRI 1.8 this will only execute on a single core. In 1.9+ it can use multiple cores, but will be subject to the GIL. On Rubinius and jRuby etc. it won't have to deal with a GIL. A multi process version would be immune to both. There are additional caveats to think about, like signals.

Of course this requires "guess" and "actual" to be thread safe.
I'm still not quite convinced that enough people care about getting from LA > SF and back again. The Hyperloop would be infinitely more useful (and might actually get done) if it were from Boston to DC (with NYC and Philly stops in between).

http://en.wikipedia.org/wiki/Northeast_megalopolis
> and do not properly understand the other components in the equation

Even though I believe I do, this is irrelevant, all the end user sees is that it doesn't work, he doesn't care about the architectural problems of the window system. It's extremely annoying when you have to exit the game to look something up (probably related to the game itself), or do anything else, especially considering how long modern games take to load.
"...made of steel..." "...it's not transparent aluminum..."

‽
Why the slash? And a lot of Linux distributions already have '..' as the same alias -- as . is already a shortcut for 'source'.

If you really want to optimize this, there's always your .inputrc.

"\e[24~": "cd ..\n"

For lots of terminals, this maps your F12 key to go up a level in the directory hierarchy, no subsequent press of the enter key required.
At present we're in a 'gold rush' phase, and the rewards from mining result with a large amount of resources being spent on it.

Mining rewards will diminish over time so it will no longer be feasible to mine as much as in the 'gold rush' phase. So the carbon footprint will not be growing all the time.

In fact, there's a race to make the current hardware to become more power efficient. If you live in a sunny place, you could probably pick up 240 Watt solar panels for around $300, a connect a Raspberry pi @ 3.5 watts, then a 10 GH/s Erupter blade @ 75 watts.
Musk could technically pay for it, his wealth is right around $6 to $7 billion (33m shares of Tesla worth $4.8b; $1b in SolarCity, and SpaceX is worth at least a billion to him, plausibly more), but it'd wipe him out.

There are reasonably a few individuals or groups of people in the world that can very safely spare the resources to build it (such that paying for it it wouldn't materially damage their business or ability to run their business, or otherwise tank their stock, put them in the poor house, and so on).

Bill Gates (Cascade can raise $10 billion quickly), Carlos Slim, Warren Buffett (the street already knows he's going to liquidate), the Koch brothers together could easily do it, Ellison could do it with leverage (he'd never sell that much Oracle stock in one go, and he earns enough annually in dividends to pay off the loan), and the Walton clan (but they'd be very unlikely to coordinate on such a thing).

For almost anybody else, the liquidity or leverage it would take would be overwhelming or very risky at the least.
Greg Stevens couldn't be more off on this topic, I bet he hasn't even read everything Rob has done since his first blog post:
- He has been doing the diet for over 7 months and doesn't just 'feel fine'. He feels fantastic and has never felt as fit as he does today.
- He has had many tests with other people already, all with positive results
- Although he is not a dietician or studied for this subject, he's also not a complete idiot that read 'a few Wiki pages'... He has done intensive research on the topic and has been tweaking his recipe for months to get the perfect balance.
- He doesn't eat this stuff exclusively, he regularly eats out and enjoys it much more than before. Soylent is merely a replacement food for the day-to-day activities in order to save time, money and resources
If they were asked to supply the White House with photocopies of non controversial documents, would the photocopies look like that? I'm, (perhaps wrongly) assuming not.

So to me, it hints at a level of contempt for having to comply.

In other words, doing a slap dash crappy job because doing it annoys the person tasked with it or authorizing it. Like a kid who is told to clean it's bedroom and then doing it sloppily because it doesn't want to do it.
Lessons learned: only pay affiliates whose customers forwards lead to a new shopping session, not an existing shopping session.
NASA total budget over its lifetime: $790.0 B in 2007 dollars. Just the book cost of the wars since 2001, http://costofwar.com/ 1.45 T not including future costs (debt payments, health care, net drag on economy) are roughly 2 more entire lifetime-NASAs. Wow. How much innovation have those two wars earned us?

How about large scale funding of science and technology is an "engine of innovation", whatever that term means.
IBM's is quite funny too:

IBM.COM.X.SERIES.SERVER.SUCKS.A.LOT.BAOZUITUN.NET
IBM.COM.IS.TOLL.JUKE-CLUB.COM
IBM.COM.DO.NOT.BUY.IBM.SERVERS.IT.WILL.REBOOT.A.LOT.BAOZUITUN.NET
IBM.COM.CN
IBM.COM
I dunno - isn't this the most useless experiment ever? The brain reacts to death throes of the body. Who would have thought? I would imagine being killed would be a pretty significant experience for the brain, and usually a completely new one.

Also I was under the impression that clinical death implied that there are no more brain waves.
"Had I intended ...", not "I had intended ...". He's making a hypothetical statement.
Ask HN: Best ways to solicit donations for a free service?
I run http://jsonip.com. Its a free service, supports millions of daily requests, and something I really enjoy working on and maintaining. Server fees each month are only about $50 USD. I need to find a way of asking for some donations of my users or the service will probably be shut down for a while in a few days. I can't afford to pay for the hosting right now.

Some important details: This has been a personal project and isn't part of any commercial entity. In each response you'll see a reference to getjsonip.com and jsonip Pro. This is an idea I've been looking at for a few months and only have been collecting signups. The server also hosts my personal blog http://geuis.com and a photo streaming site called Popped At (http://popped.at). Neither of those sites are commercial either and are just other sites I develop.

If it was just my blog and Popped At, I wouldn't be posting this. But since jsonip.com is used by so many people, I don't want it to go off air. In fact, I'm very uncomfortable writing this at all, but I don't have any other options at the moment.

Can some more knowledgable folks make some suggestions for how I can go about this process? I have Paypal but have heard stories about how they shut down donator accounts. This is way too small for a Kickstarter campaign and isn't really appropriate for that anyway. Lastly, I'd like to do this in a more or less transparent manner. I feel weird about asking people for donations that goes to run a server that also hosts my non jsonip.com sites.

Thanks.
Android is better, but for who?
So when someone makes a reasonable suggestion that doesn't work out, you fire them? Yeah, that sounds like a company I'd want to work for.
Both are under implementation. Servo is nowhere near ready yet as would be expected for a totally new engine (although it is making progress [1]). Electrolysis is in for Firefox Mobile / Firefox OS and is in progress for desktop[2].

[1] https://twitter.com/metajack/status/364571230331875331

[2] https://wiki.mozilla.org/Electrolysis
The real question seems easy:

Why should one start to "eat" in a way that our body was never made for?

For how long has humanity been eating natural and solid things again?
Fidelity Explores the Future of Investing with Google Glass
Nice people also judge those who try to shame people (not all of whom are native speakers of English) into silence on health-related forum threads by picking on irrelevancies.
Thanks for the link.

1. That's good to hear.

2. I am a bit worried about that, which is why I want to take advantage of the opportunity now rather than four years from now when it might not be available.

3. I do have family to stay with there.

4. That's definitely true but I personally value money/opportunity/career to dating.

5. My plan right now is to do exactly that. I am a bit worried about how a gap year will affect my scholarship opportunities though.
The question is who is asking this and there may not be an answer and that (the state of realization) could be the truth.
The parent may have been confused about when a transaction takes place. They would only have a taxable event for their currency at the time they converted between different currencies. However, the advice you give about calculating capital gain in foreign currency is VERY bad. You may have been given bad advice. In particular, the IRS helplines are completely inaccurate for issues arising from foreign residence. If you get a personal letter ruling then their advice is binding. Advice over the phone is not binding.

For a US citizen, the functional currency for personal taxation is ALWAYS the US dollar. See particularly points 12 and 13 of http://openjurist.org/93/f3d/26/quijano-v-united-states

Basis must always be converted to US dollars using the exchange rate at the time of purchase, and sale price likewise converted to US dollars using the exchange rate at the time of sale. The US capital gain is then the difference between these two US dollar values.

This can easily (and frequently does) lead to having to pay a capital gain on a transaction that lost money in the currency in which it actually took place. Particularly the last decade was bad for this with the falling US dollar.

Many expats (if they are aware of their obligation to worldwide taxation which most are not) may calculate this incorrectly. This will often be ignored by the IRS, because they have no matching information to use to flag the foreign transaction for audit. However, with FATCA coming, the IRS will finally get some matching information and it is a strong possibility for nasty surprises in the future.
Hacking Innovation
What do you mean, "to eat in a way that our body was never made for"?

You real question is non-sensical. Pre-humans and humans have eaten in many different ways throughout, and will continue to do so.
Yeah, well, a friend recently switched from iOS to Android.

And he says he can do to much and next time he will go back to iOS.

Perhaps Android should have a "simple" mode and a normal mode, that could soften the problem.

Simple mode gives the default settings and they are unchangeble (lock screen, default mail app, default browser) and kinda whitelists apps on their features (no replacement apps) and a normal mode for everyone else who is willing to use Tasker and other apps.

PS. The author of the referenced article kinda forgot Tasker :s

To bad for him though.
Expose the current file in the side bar so you get a picture of its location in the dir tree? Install a package? Change the window size?

I'm not talking out my hat at all. I notice no productivity improvements from using vim. Maybe some appear in different lines of work, but I'm not saying it just to annoy you.

I don't notice Gentoo users being all that much more productive than Ubuntu users, either. It's basically a hobby to endlessly tweak your environment, and so is vim, IMO.
As well as Rand would like this story, with its normative, visionary captain of industry, its worth remembering that this line of thinking is as bankrupt as it is naive.

First of all, it would be utterly impossible for a purely private initiative to build the hyperloop as proposed. Most obviously, the unique feasibility argument here is that the government already owns highways that could bear the tube for most of the distance between SF and LA. But no serious rail line has ever or could ever be built without government help, because it would be impossible to negotiate the purchase of all the land without eminent domain.

Pragmatics aside, this is also just a very facile way of looking at things that belies, I think, a certain amount of laziness. The government isn't perfect, and sometimes bureaucracy does hinder good projects, but really the challenge for hyperloop would be garnering public support. If the proposal becomes massively popular, the government will have a huge incentive to build it. Unfortunately it's easier to complain vaguely about the government than it is to convince weary tax payers to fund a massive project using unproven technology. I'd love to see hyperloop built, but I am not desperate for other services that would be provided with the same money (better schools, for example).

Much of the reason American business thrived in the second half of the twentieth century is because of the superior infrastructure the government built. Every business in Y Combinator relies on services provided by the government and couldn't function nearly as well if Ron Paul were king. And, obviously, the government has achieved radically ambitious projects before. Have you ever been to Hoover Dam? Driven from coast to coast?

Government isnt perfect and can be frustrating, but bureaucracy is almost never the primary obstacle. It's just a convenient excuse.
Why Elon Musk's 'hyperloop' transport won't work
Sure our diets have changed over time. But I don't think we've ever lived on one food alone?
Yeah, I didn't understand the hydroponics comment at the end. How does it work better to grow plants indoors than outside if you're using a limited amount of sunlight indoors? Are there other factors that make it worth it?
I'm wondering why he forgot Tasker :s
I think people enjoy eating, but the tradeoff (cooking, having a good recipe, etc) is too big for them so they go for fast food, skip meal, etc.

Could I be wrong?
Facebook to Buy Mobile Technologies for Voice Recognition
My favourite bit is the Konami code.
GitUp - git repo browser for iPhone.
You can play a lot of thought experiments about scientific experiments to test if the table disappears. As far as I know at this time, they all devolve into the brain-in-a-vat or the bad-actor solution (although I may have the names mixed up). The brain in a vat is we're brains in a vat connected to a really high end "second life" computer server. The bad actor argument boils down to some god is testing our faith by trying to fool us (usually heard about fossils, or the earth being round, etc)
And if the tube breaks behind you, you'd just arrive sooner.
Inter-city (ie medium/long distance) trains in the UK generally have wifi and power sockets
Show HN: Now Weather, my upcoming iPhone app
It's a bit of what Windows 8 tried to do. The simple mode is the metro UI, and the normal mode is the old desktop. It solves the problem, but not many people likes it.
Just one more point: the colon depends on solid material in order to push things through (it's how it works). Get rid of solid food in there and its muscles won't create any real transit.
And it shows Austria as AU which should really be AT.
This kind of article seems to ignore the fact that almost everyone eats poorly.

In other words, the proposition "Soylent will not provide close to optimum nutrition for everyone" is extremely different from the proposition "Switching to Soylent will improve the diet of most people".

Most people get most of their calories from sugar, refined starches, and refined vegetable oils. They do not finely-tune their nutritional intake based on their gender, weight, age, activity level, stress level or time of year. I'm interested in the pros and cons of Soylent for this type of typical person.

I'm extremely skeptical of Soylent, but this vector of attack seems incorrect to me, applicable only to people who already have extremely health diets.
Accelerating serendipity or Increasing your luck surface area
3D Printing in the Medical Field: Need an Ear Replacement? No Problem
Isn't the real problem that it sucks to drive 7 hours?
Which is how you keep the economy growing.
Sulfa drugs.
Facebook's Worst-Case Scenario: Becoming the Next Yahoo
Sorry, where did you see that?