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dpatru

3,704 karma · joined July 13, 2007

dpatru@gmail.com

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dpatru··on Uber secures right to continue operating in London
> . . . cabs are vastly better than most offerings from Uber, since the car is designed for transporting paying passengers . . .

> Aren't the levels of Uber that allow a Prius to be used much, much cheaper than a black cab? If you want a larger car, you can get it. You'll just pay a bit more.

> On paper, sure. In practice, I find that Uber is nearly constantly in surge pricing in London. I've had it several times now where I Was riding in a group, same start point same destination - some people in ubers, some in black cabs. Again, with normal pricing Uber should be cheaper, but since it's very often at 1.5x-2x multiplier, it works out the same or actually more expensive than a black cab. And sure, there is the higher tier of ubers too, but it's usually showing me 20-30 minute wait for a cab for a nicer car.

Seems like the fact that there is constantly surge pricing and long waiting time means that there are too few Uber drivers, even in "low quality" cars, to meet demand. Your complaints sound like the old joke about prison food: it tastes terrible and the portions are too small.

dpatru··on Show HN: Offset – Credit card powered by trust between people
I think your assertion that inflation (money printing) is necessary for inflation is wrong and certainly not obvious. Investment necessarily comes from savings. One must not eat some of this year’s corn so as to have next year’s seed. Whether state-forced savings through inflationary bank loans is better than voluntary private savings should be answerable by studying history. Was there better investment historically in countries where the state devalued money in favor of banks, or in countries where money was not devalued?
dpatru··on YouTube removed a viral video of two doctors calling for an end to quarantine
> Until YouTube joins the Senate, I think they’re fine doing whatever they want.

I think it's reasonable to assume that the American government contains the same kind of people that are in governments the world over and throughout history. And governments have always attempted to suppress speech: that's why the First Amendment was written.

Given Snowden's revelations, can you be sure that Youtube's censoring is simply a business decision by executives and not a result of government influence? How would things be different if the government were pressuring the big platforms to squelch speech?

dpatru··on YouTube removed a viral video of two doctors calling for an end to quarantine
> they're just stopping them posting it on THEIR service. Newspapers do that all the time, TV and Radio does it all the time. Why is this different?

Newspapers, TV programs, and radio programs are publishers. In contrast, Youtube, Facebook, and other services like them are platforms. They are more like the theater building, the radio/TV station, or a telephone company. This gives them some legal protection against being held responsible for the conduct of their users. See [1]. Without this distinction, these services could not have taken off, because Youtube and Facebook would have had to sign off on each user's post.

But advancing technology is making it possible to police speech automatically. So the distinction between the publisher and platform is fading. Because platforms can regulate their users' speech now in almost real time, very cheaply, they are kind of forced to do it. Some speech is very hard to defend. The best, and easiest argument for allowing offensive speech on these platforms has been that the offensive speech could not be technically prevented without squelching a lot of acceptable speech. But now that argument is going away.

[1] https://www.google.com/search?q=youtube+publisher+or+platfor...

dpatru··on The Global Dollar Short Squeeze
US Treasuries pay in dollars. Buying a Treasury is a bet that dollars will still be valuable in the future. Am I wrong to see the high value (low interest rate) of Treasuries as a consequence of the value of the dollar, not a cause? If people lose faith that the dollar will hold its value, the fact that the US government is willing to pay 1% interest in dollar loans will not help bolster confidence.
dpatru··on Apple fined $1.2B by French antitrust authorities
Before you advocate punishing private company managers, consider holding government employees, managers, and politicians to the same standard. Every manager in government should be sure that the people who report to him or her are following the law, else, the manager gets fined and goes to jail.
dpatru··on As L.A. plays tech disruptor, Uber fights back
Rather than requiring users to give them information, the city might improve things by providing real-time information about its traffic. This would enable individual users to make their own decisions as to where and when to travel possibly with help from third-party companies who specialize in providing advice. Google, Apple, and the wireless companies may already have a good-enough version of traffic data because they can track people via their phones.

There is no need for the government, the organization that fixes the roads, provides the police, administers a court system, etc, to also be in charge of traffic management. It can be handled through the market.

dpatru··on Courting Haskell
> Why is typed functional programming measurably better than procedural? Why is it better than OOP? Definitive answers are in demand not exploratory experiences.

Functional code tends to be shorter than procedural code. This allows you to think in bigger steps. For example, to read whitespace-separated numbers from stdin and print out their sum, in haskell you could write:

    main = interact $ show . sum . map read . words
This uses very generic haskell functions to put the input into a list of strings, read each string as a number, sum the numbers and show the sum as a string.

It seems to me that the equivalent procedural code would be much longer.

Haskell's type system keeps track of what's going on and alerts you when you try to do something that doesn't make sense. For example, if you leave out the "read" function above, you would be trying to sum strings instead of numbers. Haskell's type checker would complain at compile time. This enables you to program at a high level without having to debug run-time errors because of type mistakes.

dpatru··on America's Biggest Milk Producers Are Going Bankrupt
https://m.youtube.com/watch?v=7q2Ry-pC6Rw

Here are my kids making vegan mac and cheese.

dpatru··on What Did the U.S. Get for $2T in Afghanistan?
Sending troops is more expensive and less effective. Troops cause collateral damage which results in more terrorists.
dpatru··on [dead]
I read this last week. Then today I learn that Epstein is found dead. I feel like I'm watching a conspiracy from a novel play out in real life. This article predicted that Epstein would be killed:

"Given my personal lack of interest in the Epstein case, then or now, perhaps a few of these details may be garbled, but it seems undeniable that he was exactly the sort of remarkable renegade often faced by Agent 007 in the movies, and the true facts will presumably come out at his trial. Or perhaps not. Whether he lives to see trial is not entirely clear given the considerable number of powerful individuals who might prefer that hidden facts remain hidden, and the Friday newspapers reported that Epstein had been found injured and unconscious in his prison cell."

dpatru··on July Matched, and Maybe Broke, Record for the Hottest Month Since Analysis Began
As a counterpoint, consider this quote from an article [1] by economist Robert Murphy: "In the climate change debate, people often forget that under all but the most catastrophic scenarios, the future generations who will benefit from our current mitigation efforts will be much richer than we are. For example, Nigel Lawson points out that even under one of the worst case scenarios studied by the IPCC, failure to act would simply mean that people in the developing world would be “only” 8.5 times as wealthy a century from now, compared to 9.5 times as wealthy if there were no climate change. [2]"

[1] https://www.econlib.org/library/Columns/y2009/Murphyclimate.... [2] Nigel Lawson, An Appeal to Reason: A Cool Look at Global Warming (New York: Duckworth Overlook, 2008), p. 36.

dpatru··on New York City Neighbors Build Cheaper Way to Connect to Web
> It is quite shameless, here is an awesome volunteer run basic service project, and this is a Blockchain rent-seeking VC startup.

You're implying that there is something shameful with providing a market for connectivity which allows for people who can't afford to work for free to participate. What is shameful about this?

dpatru··on U.S. to set up plan aimed at allowing prescription drugs from Canada
> we could create a law that sets the maximum price for medicine in the US at some multiple of what's charged abroad.

Why create more laws and complexity? Why not simply repeal the laws that prohibit importation of drugs and possibly also refuse to enforce private contracts prohibiting reimportation? The reason drugs are cheaper in Canada and Europe than in America is because of American laws that prevent importation.

dpatru··on U.S. to set up plan aimed at allowing prescription drugs from Canada
Free markets mean that other sellers are free to compete. This is why food, an essential good, is generally cheap. Any seller of food can charge an arbitrarily high price but cannot exclude competing sellers.
dpatru··on Google's Project Dragonfly 'Terminated' in China
> Right to be forgotten gives the individual the right to have his data removed from permanent storage by companies, for whatever purpose: not sure how it relates even remotely with censorship.

Books are also permanent storage, often stored centrally in public libraries. Does an individual have the right to have information about him removed from books in libraries? Wouldn't that be a kind of censorship? The only difference is that so called "right to be forgotten" applies to Google's electronic storage rather than your local library's books. Just like you don't have a right to remove pages about you from your local public library's copy of your high school yearbook, so you shouldn't have the right to remove information about yourself from Google's indexes. Both are censorship.

dpatru··on France has approved a digital services tax despite threats of retaliation by US
A free market transaction benefits both parties; both buyer and seller feel like they are better off as a result, otherwise they would not agree to the sale. Therefore, just as the French government can say that the American company is benefiting from French citizens, so the American government can claim that the French citizens are benefiting from American companies. A tax by either government inserts friction into the transaction and makes the deal less profitable on the party or parties that pay for the tax.

The French government is taxing businesses not because this is somehow morally right or efficient, but because it is easier than convincing its subjects/citizens that government services merit higher personal taxes.

dpatru··on The Messy Reality of Personalized Learning
There’s also the question of cost: A world-class teacher for (almost) free online vs a non-world-class, very expensive teacher in person.
dpatru··on Want to learn a new skill? Take some short breaks
Learning is a physical process. The brain needs time to form connections. Like building muscle, the best we can do is stimulate and then give time to grow.
dpatru··on New pill can deliver insulin
I am mostly familiar with McDougall because of his extensive, high-quality, free youtube lectures. I have exactly the opposite impression of him than you. Instead of advocating a fad diet, he advocates a low fat, whole food, starch-based diet. He justifies it first on the grounds that every successful civilization has had this diet. Pick any civilization, country, or people group that is healthy and you will find that their diet is based on starch. His diet is the opposite of a fad diet: it's the diet that has sustained civilization.

His diet is cheap and accessible. You can follow his diet by eating locally produced wheat, potatoes, oats, rice, corn, millet, beans, etc, in all parts of the world that have an agriculture season. A feature of his diet is that starchy foods store well. Indeed, he says that the reason humans became so successful is because they were able to have a food supply that was high in energy and could be stored.

McDougall does not sell pills or supplements. He specifically counsels against them, saying that they are unnecessary with a good diet and potentially harmful.

In addition to a lot of free educational content, his website (drmcdougall.com) features different programs, including a 10 day live-in program which includes medical care plus meals and education for $6,060 for a single, full participant. You can also buy books, podcasts, and apparel. I didn't see any prepackaged food on the site.

I've considered him a source of high-quality, unbiased advice for several years. His presentations are clear and logical. He's not trying to sell me something. He is conservative in the sense that he prefers cheap, simple solutions before expensive, complex ones. For example, he would recommend that before you try medication and surgery, you should first try to change your diet. If you're not feeling well, make sure you're eating eating a low-fat, whole food, starch-based diet before trying to find a missing miracle vitamin or supplement.

dpatru··on New pill can deliver insulin
yes
dpatru··on New pill can deliver insulin
I googled "diabetes in thin people" and found the term "skinny fat", slim but with a high percentage of body fat. These are people who may appear to their body to have enough fat stored to survive a tough winter. (This was how McDougall describes the onset of diabetes.) Can people with low body fat get diabetes?
dpatru··on New pill can deliver insulin
McDougall points out at one point that it's common for people to gain weight after their doctor tells them to lose weight and puts them on insulin. Insulin promotes weight gain.
dpatru··on New pill can deliver insulin
> How would this be reconciled with significant weight loss often being a symptom of type 2 diabetes?

I don't know, but here is my guess:

At the beginning of the lecture McDougall talks about there being three kinds of diabetes: type 1 (pancreas produces no insulin), type 2 (pancreas produces enough insulin, but it doesn't work because of insulin resistance), type 1.5 (not enough insulin is being produced to cover the body's needs). Significant weight loss seems to fit in the type 1 and type 1.5. McDougall will prescribe insulin if a person is in danger of losing too much weight.

dpatru··on New pill can deliver insulin
I just watched a lecture on diabetes by Dr John McDougall last night. He described type 2 diabetes as the body's natural way to limit weight gain. He points out that morbidly obese people are often not diabetic: lack of insulin resistance is what enabled them to keep growing. Viewed this way, diabetes is a sign that a person has reached maximum weight. Giving a person additional insulin at this point is like trying to override the body's defense mechanism and forcing it to gain even more weight.

McDougall has lots of other interesting insights in the lecture and discusses how he treats diabetics. He goes into some detail about how he decides how to adjust medications and why he recommends his diet.

I'm posting this here because it may be of use to people who may not have heard this information from their own doctors.

The lecture is found here: https://youtu.be/UgE2IdL6tMw?t=1103

The link starts the video at the point where McDougall starts discussing type 2 diabetes specifically. Before this he talks about insulin and type 1 diabetes.

dpatru··on Doctors ask engineers to spend more time in the hospital before building apps
You don't have to be rude...

> What's the utility of "EKG" [sic] …

What’s the Difference Between ECG and EKG?

The fact of the matter is that an ECG and an EKG are the exact same thing. That’s right, the most surprising difference between an ECG and an EKG is that there is no difference at all. Both ECG and EKG stand for electrocardiogram.

So, if an ECG is the same thing as an EKG, then why are there two different abbreviations? It’s actually quite simple—when the word electrocardiogram is translated into the German language, it is spelled Elektro-kardiographie. EKG is just the way some people choose to say ECG based on this translation.

From http://neurosky.com/2015/05/ecg-vs-ekg-whats-the-difference/

dpatru··on Uber Scam in Brazil – Drivers Have ‘Challenges’ Ending Trips
Other comments here indicate that Uber scams are not as bad as taxi scams.
dpatru··on 15 years later: on the physics of high-rise building collapses (2016)
Dr. J. Leroy Hulsey of the University of Alaska Fairbanks has a study on the collapse of just World Trade Center Building 7, which fell even though it was not hit by a plane. So far he has concluded that:

"The findings thus far are that fire did not bring down this building. Building failure simulations show that, to match observation, the entire inner core of this building failed nearly simultaneously."[1]

[1]: http://ine.uaf.edu/projects/wtc7/

dpatru··on How to Get Kids to Do Chores: Does the Maya Method Work?
My wife makes cooking videos with my three-year-old. https://www.youtube.com/channel/UC_suiznE4hpPUaR0UJci6eA
dpatru··on Ask HN: Have you built a house?
If you want to build with concrete, look into ICF (insulated concrete forms). These are foam panels that easily fasten together make the forms. After the concrete is poured, the forms stay in place to form the insulation. If you are handy, you could probably do the pour yourself with friends and family, saving you a lot of money.
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