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cmpxchg

80 karma · joined February 15, 2015

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cmpxchg··on Facebook was in talks with hospitals about a proposal to share data
The initial partnership was with Stanford hospitals. Many in the HN community live in the Bay Area and may have used these medical facilities. If you are concerned, other boards are suggesting patients can contact:

James Laflin, Stanford School of Medicine Ombudsperson: jlaflin@stanford.edu / 650-498-5744

David Entwistle, CEO Stanford Healthcare: 650-723-4000

cmpxchg··on Facebook Security Chief Said to Leave After Clashes Over Disinformation
Do you have a source for this? It sounds a bit hard to believe. If the police believe that evidence was/is at risk of being destroyed (as you are implying), they could get an emergency search warrant immediately, even outside normal court hours. In the U.S., there are magistrate (warrant) judges on call overnight for exactly this type of situation; I imagine a similar system exists in the UK.
cmpxchg··on The IRS collects data on Coinbase account holders
It's not just Intuit and H&R Block. A lot of us small business owners don't want the IRS knowing every detail of our businesses in order to just magically send us a pre-filled return each year.

The current tax system places responsibility on you, the investor, to tabulate all of your gains and losses, but it also gives you the freedom to invest in complex and unusual transactions like coins in the first place. Don't be so quick to assume you could give up the one without giving up the other, were it not for those pesky TurboTax lobbyists.

cmpxchg··on Dtube – A decentralized video platform using STEEM and IPFS
The fact that all these sites exist (4chan, 8chan, Voat, Gab, etc) suggests that there is demand. You may find their content objectionable, and I may agree with you, but that doesn't mean there's not a viable business there.

> Regardless of your opinions on the subject it's a bad thing for the platform [DTube]

I don't agree. If DTube becomes associated with the far right, which by the way is totally jumping to conclusions at this early stage, and if that then becomes a profitable niche for them, then I'd argue they have a legitimate business.

Compare it all to something like MSNBC vs Fox News. Both are quite successful, running political content for people at different points on the ideological spectrum. While it's true that the viewers of one probably find the other's viewers disgusting and deplorable, I fail to see how that's a problem from a business standpoint.

cmpxchg··on Unilever threatens to pull its ads from Facebook and Google over 'toxic content'
Why did you have to throw in a random criticism of hunters? The article is referring to "extremist" content.

In many places in the U.S., hunters are among the most effective conservationists at the local level.

cmpxchg··on How Feynman Approached Fermat's Last Theorem
Beautiful! Of course, no finite probability could ever prove that no solution exists, but being able to say that the odds of a solution are 10^-31 is, for all practical purposes, a guarantee there is none.
cmpxchg··on A wall of lava lamps helps encrypt the internet
A 10 μCi 137Cs source is not dangerous. Even here in California, you can legally throw these away in the regular trash (if solid) or wash them down a sink drain (if liquid). Compared to the kind of ordinary household chemicals people are using every day in large volumes, these things are harmless. You definitely don't need a lead-lined room.

Source: I worked in a lab

cmpxchg··on A wall of lava lamps helps encrypt the internet
Real world RNGs get randomness from two sources: (1) the timings of random events on the machine (primarily network traffic), or (2) a hardware device that runs several oscillators on different clocks and detects coincidence in the derived square waves. Even #1 alone is normally sufficient in the real world. While you're right that there are attacks against RNGs, it's never going to be because an attacker gets control of every little bit of stray RF in your data center such that he can control the exact timing of packet arrival, packet retransmits, etc.
cmpxchg··on A wall of lava lamps helps encrypt the internet
tptacek is right. It's a cool art installation, but for practical purposes this is utterly useless. A modern hardware RNG (which is entirely silicon based) generates random bits at a vastly higher rate, and with better reliability, like built-in continuous statistical tests, than something rigged together with lava lamps, Geiger counters or the like.

I've built those kinds of science projects, and they are great for fun and for learning, but they are not practical or necessary in any production environment.

cmpxchg··on Simulacra and Simulation
Not only that one scene, but a lot of the ideas in The Matrix are inspired by the writings of Baudrillard. That's presumably why the Wachowskis put the book in that scene, a subtle joke.
cmpxchg··on Simulacra and Simulation
Thank you for the suggestions. I will definitely study these.
cmpxchg··on Simulacra and Simulation
Agree on everything except Zizek. He's an entertaining provocateur, but there's no way he's at the level of Hegel and Kant. His interviews in the British news media are hilarious though.

Hofstadter's book is brilliant, funny, delightful - a real treasure.

cmpxchg··on Simulacra and Simulation
I read the book in college decades ago. It's very famous and he predicted a lot of stuff about media and culture that has become true in the modern era of Internet / social media / YouTube e-celebs / etc.

However, his good ideas are cluttered up by the usual sloppy reasoning of postmodernists. He also has an unfortunate obsession with weaving Marxist far-left politics into everything, which is distracting. (Chomsky has the same problem for me.)

The book did not change my life, but it is a notable work of late 20th century philosophy.

cmpxchg··on The Tech Bust of 2015
The conventional wisdom is your #2. The idea is that for the past 6 years, interest rates have been close to zero, and as a result, people who would traditionally want to park their money in bonds have been forced into equities just to get any (non-zero) return. This is particularly true for investors like pension funds that need to show a certain return each year or else the manager gets fired or does not receive a bonus.

The other issue is that Fed monetary policy tends to work with a lag of ~18 months. In other words, once the Fed starts a cycle of raising rates, recession or slow growth are the expected outcome -- not immediately but within 1-2 years following the rate increases. (Why? The reason is because borrowing costs increase for businesses -> they hire fewer workers -> more unemployment -> recession, etc.)

These are general rules of thumb, not hard rules, obviously. Also, the conventional wisdom that reigned supreme between the 1960s - 2009 may or may not hold in the future. Monetary policy has changed dramatically in recent years, and I think it's safe to say that no one is quite sure what will happen when the Fed raises rates. Some question whether they even can influence market interest rates anymore [1].

[1] http://www.nytimes.com/2015/09/13/business/economy/the-feds-...

cmpxchg··on Benchmark’s Venture Capitalist Gurley: ‘Private Valuations Are Fake’
We're seeing a lot of anti-unicorn sentiment recently. In addition to Gurley's comments here, Sequoia's Mike Moritz wrote an op-ed saying most unicorns are a joke [1]. And today's Wall Street Journal has a page one article about how tech IPOs have become all but impossible because private market valuations are so much higher than what public investors are willing to pay [2].

It all begs the question: what's happening?

[1] http://www.businessinsider.com/sequoia-capitals-michael-mori...

[2] "Tech Startups Feel an IPO Chill" http://www.wsj.com/articles/tech-startups-feel-an-ipo-chill-...

cmpxchg··on How Mexican heroin cartels are targeting small-town America
The article uses terms like "epidemic," but the map graphic suggests a national mortality rate of around 2.5 per 100,000. That's 0.0025%, or 7,500 people per year.
cmpxchg··on [dead]
Firefox has no problem with %00 links
cmpxchg··on Our Team Won Startup Weekend and All We Got Was a Shitty New Boss
Just as the restaurant owner sounds like he has a tendency to take credit for more than he actually did, the software engineers here sound as if they have an irrational belief in the importance of their own contribution relative to that of others. And an ego problem. "A dream team of developers"? It's 2015 and you built a simple website in Python.

Both sides in this story need to grow up if any of them ever want to launch a successful business.