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User: davidwr

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  1. A retirement age of 57 is okay ... on Greek Financial Crisis Is an Opportunity For Bitcoin · · Score: 1

    ... as long as the life expectancy of 57-year-olds is short enough that it doesn't bankrupt the economy.

    They key for a "generational-tax" or "government-paid" retirement system is that the money coming into the system is at least as much as the money going out, at least for the long haul. If 57-year-olds die so quickly that the working population can easily meet all of their retirement expenses, then retiring at 57 isn't an issue.

    Wait, this just in: The life expectancy of a 57 year old in Greece is a lot longer than 1 year, so long, in fact, that allowing healthy people to retire and draw a pension at 57 is not economically feasible.

  2. Currency vs. store of value on Greek Financial Crisis Is an Opportunity For Bitcoin · · Score: 1

    Bare-metal gold is a very inconvenient currency, but it is reasonably good as a long-term store of value.

    Counterfeit-resistant gold-backed paper money or counterfeit-resistant gold coins - where there is no doubt of the amount of gold in the coin - are much more convenient but I don't see many countries making reasonably-sized gold coins or currencies that, on any given day, have a market value in the $0.10-$20 range that most people need when they go buy groceries.

    As a long-term (20+ years) store of value, most people should have a mix of asset types including at least a few weeks of easily-accessible spending money and several months of "I can get to it within a few days" spending money. In a time of crisis, the "few weeks of spending money" is probably going to be the actual national currency or coin or it will be a commodity that is easily carried in your pocket and bartered, such as unopened packs of cigarettes in the battlefields of WWII.

  3. Conjuring gold and silver out of thin air on Greek Financial Crisis Is an Opportunity For Bitcoin · · Score: 1

    you can't conjure extra gold and silver out of thin air

    There are two relatively "easy" ways to conjure gold and silver "out of thin air".

    1) Steal it. The difficulty is comparable to stealing currency or base-metal coins.

    2) Counterfeit it. If your country uses precious-metal coins, make counterfeits that contain slightly less precious metal. If it doesn't use coins, make bars or whatever that are adulterated so when you spend them, you instantly make a small profit on the adulteration (less the cost of counterfeiting). Of course you'll only be able to spend them at places that don't have the equipment to detect a slightly-adulterated bar or high-quality-fake coins, but that's part of the cost of doing business.

  4. Greece has one huge industry: Tourism on Greek Financial Crisis Is an Opportunity For Bitcoin · · Score: 1

    The history of Greece as one of the cradles of "Western civilization" and as destination for those interested in religious history makes it a natural market for tourists.

    Whether Greece makes a "little" money on tourism or a "lot" of money on tourism is a function of how hospitable it is to visitors. If the country as a whole makes it a priority to be very nice and welcoming to foreigners, they stand to reap a lot more in tourist spending than if they take tourism for granted or, worse, go out of their way to make tourists feel unwelcome.

  5. Replying to myself on Greek Financial Crisis Is an Opportunity For Bitcoin · · Score: 3, Insightful

    Anyone who uses something as volatile as Bitcoin as a long-term store of value only has themselves to blame when things go south.

    For me, personally, Bitcoin's primary utility is as a medium of exchange, not as a store of value. Thanks to Bitcoin-based and similar low-friction (read: low transaction fee) means of exchange, I can buy stuff from merchants that accept BC without dealing with typical currency-conversion fees. If I'm a seller, I can sell without dealing with the typical merchant fees associated with credit cards. Then again, I have the advantage that my nation uses a currency that is, for the time being at least, considered one of the world's major stable currencies.

  6. Those outside of Greece will have an impact on Greek Financial Crisis Is an Opportunity For Bitcoin · · Score: 2, Insightful

    When the first country leaves the Eurozone, then it will make it easier for the next country in crisis to do the same.

    This will cause those in weaker countries to look to something other than the Euro to store their long-term savings in. Bitcoin will be one of many options, as will metals, other major world currencies, land, art, collectables, and other items that are likely to keep their "real value" in the event this person's country exits the Euro and all bank accounts are re-denominated into a weaker-than-the-Euro currency.

  7. Not just e-money on Greek Financial Crisis Is an Opportunity For Bitcoin · · Score: 3, Interesting

    Commodity-backed money, such as actual precious metals or precious-metal-backed-depository-receipts (or even gold-backed bank notes) from an institution that people trust, can be functional currencies in places where the currency is unstable and local laws or customs don't prevent it.

    Heck, even in the Untied States of America, the US Constitution specifically allows states to mind gold and silver coins and declare them legal tender. In practice, this is not needed because relative to the cost of most goods and services, the US dollar is at least as stable as gold and silver, and declaring gold and silver as "legal tender" while maintaining a floating exchange rate with the US dollar would mean merchants who took both would have to re-price things in real time to prevent arbitrage-buyers from disrupting the system. However, it the US Dollar ever has runaway inflation, the option for states to declare gold and silver legal tender would make the option of having "stable" prices in gold or silver and "adjusted-by-the-minute" prices in US Dollars attractive.

  8. Similar to having default passwords on Cisco Security Appliances Found To Have Default SSH Keys · · Score: 1

    How many home routers have default passwords that aren't forcibly changed when the router is first set up?

    It's the same principle, with the only difference being it is something that has to be discovered by someone, once, rather than guessed like so many easy-to-guess default passwords ("admin", "password", etc.).

    The other difference is that one should expect better from a device that is specifically marketed as a security device. But that's a social issue not a technical one.

  9. I could have played it better on The Next Java Update Could Make Yahoo Your Default Search Provider · · Score: 1

    I regret not making the link read

    https://en.wikipedia.org/w/ind...

    Hint: When "&oldid=" is used, "title=" is ignored. In fact, it doesn't even have to be present.

    These all refer to the same thing:

    https://en.wikipedia.org/w/ind...

    https://en.wikipedia.org/w/ind...

    https://en.wikipedia.org/w/ind...

    https://en.wikipedia.org/w/ind...

  10. Doubtful it could be done via scripting on Wi-Fi Router's 'Pregnant Women' Setting Sparks Vendor Rivalry In China · · Score: 1

    What I had in mind was dynamic, real-time power adaptive power:

    The router starts in a user-defined low-power mode that was configured during the initial customer setup or manually re-configured at any later time.

    I get close enough to connect.

    It ramps up power just enough to give me maximum speed.

    As I move away from the router, it senses that it needs to increase power and does so.

    As I move closer to the router, it senses that and reduces power, but it doesn't drop it any lower than the pre-defined "low power mode."

    If more than one device is connected, it keeps the power as high as needed for the device with the weakest signal.

    To those saying "but if you move out of the range of the low-power signal and disconnect, you won't be able to re-connect unless another device is connected and by virtue of that connection, the router is still in a higher-than-low-power mode." This is true, and it is by design. As an option, the router could put a short delay in the power-reduction to account for short disconnections.

  11. Call it "nice neighbor mode" on Wi-Fi Router's 'Pregnant Women' Setting Sparks Vendor Rivalry In China · · Score: 4, Interesting

    Or maybe "small apartment mode."

    If I could, I would configure my WiFi router to be smart about its transmit power:

    I would have a "low power" mode on the router so it could be "seen" within a relatively small radius, but it would increase power as needed to stay connected to a device once that device authenticated. Once all authenticated connections went out of range or disconnected, it would drop back to "low power" mode.

  12. Use Wikipedia Re:To the poster on The Next Java Update Could Make Yahoo Your Default Search Provider · · Score: 1

    It's a given that sophisticated users like those who read Slashdot know that if they don't know something, all they have to do is go to a reliable source, like Wikipedia's entry on the subject.

    I admit, the article was a bit confusing and I didn't see anything about compatibility with modern operating systems, but one thing that was clear is that installing Java is going to bloat your system big-time. I have a big drive, but I'm not sure if I can fit another 143 million users on my system.

  13. At the very least, require physical access on Car Hacking is 'Distressingly Easy' · · Score: 1

    If a car can be hacked or damaged by any remote control* in a way that the driver doesn't accept as inherent in the design of the car, then it is fundamentally broken:

    * Car locks/remote engine/start/etc. should not be remote-controllable, but like any radio they are inherently subject to a jamming-based denial-of-service attack.

    * Safety systems that detect nearby objects, lane striping, etc., suffer the inherent risk that they can be both blinded/jammed and that they can be fooled into thinking there is a nearby object or lane-marking when there is not. But they should not be subject to "command and control" signals from outside the car.

    * OnStar and other systems that are designed to allow limited remote access to the car present an inherent attack vector, especially if they are designed to take over a car without giving the driver a veto.

    *For clarity: I'm talking remote-locks, remote-start, or using RF to talk to the car's computers. I'm not talking high-energy weapons or anything that confuses/damages the driver like a laser pointer to his eyes.

  14. Fine, as long as they assume the risk on Samsung Cripples Windows Update To Prevent Incompatible Drivers · · Score: 3, Interesting

    It would've been far simpler and less controversial for Samsung to just turn off the Windows 8/10 equivalent of Windows 7's "[right click on your computer's icon]->Device Installation settings->Do you want Windows to download driver software and realistic icons for your devices" option in the "Devices and Drivers" control panel and provide their own "driver update" program. I don't have a Samsung, for all I know, they may already have a "driver update" program. I know at least 2 major Windows-PC vendors do have their own "update" programs that include alerting users when their drivers are out of date, and it wouldn't surprise me if Samsung was doing the same.

    Given what Samsung is doing, if Samsung provides its own "Samsung Update" that (by default) automatically takes all critical Microsoft Updates and which at least gives the user the option of taking vetted non-critical updates (or even better all Windows updates EXCEPT conflicting driver updates) AND keeps this running as long as Microsoft continues to allow access to its "Windows Update" functionality (which is presumably longer than the "10 years" it promises to keep fixing security holes) then I can see this being "not all that dangerous." However, if they do this they need to make it VERY clear to the buyer that Samsung, not Microsoft, is taking responsibility for keeping the operating system up to date.

  15. Self-fulfilling statement on HP Researchers Disclose Details of Internet Explorer Zero Day · · Score: 1

    So, Microsoft thinks there aren't many people with 32-bit versions of Windows that use vulnerable versions of Internet Explorer.

    Even if they are wrong today, they will be right as soon as word of this gets out and people start panicking.

  16. Masters are still learning on Knowing C++ Beyond a Beginner Level · · Score: 1

    is there one particular thing or point that separates learners from masters?

    I think you mean "what separates those who are still early in their learning from those who have pretty much mastered the topic."

    As anyone who has "mastered" any topic of significant depth will tell you, there is always more to learn.

  17. Will it fool customs officials? on 3D Printing Might Save the Rhinoceros · · Score: 1

    If customs officials can tell the real thing from the fake, traffickers will figure out how to do it as well.

    If customs officials can't tell them apart then it will make prosecution much more difficult, especially if traffickers start claiming "honest officer, I thought it was fake, my customer specifically ordered this fake stuff, what do you mean it's real?"

  18. "We've always done it that way" on Security Oversights and Complacency Set the Stage For Killers' Escape · · Score: 1

    'As the months go by, years go by, things get less strict,'

    Sounds like if they had kept doing things the way they'd always done them, the two guys wouldn't have escaped.

    Hmm, I guess "we've always done it that way" is a good reason to at least think before changing things.*

    * However, in many cases, once you do think about things, you realize that the old way is no longer the best way. But in the case of the operations at this particular prison....

  19. Don't laugh on Sprint Begins Punishing Customers For FCC's Net Neutrality Rules · · Score: 1

    I knew a guy who ran his small business over an ~1Mbps cell phone connection.

    Getting a T1 was too expensive and DSL and Cable weren't options in the industrial park where he was located. Satellite wasn't even considered. If line-of-site wireless was available it was either slower than the cellular connection or more expensive.

    Granted, this was about 10 years ago. I'm pretty sure by now either DSL or Cable Internet is available.

  20. Re:Wireless spectrum is NOT unlimited on Sprint Begins Punishing Customers For FCC's Net Neutrality Rules · · Score: 1

    You missed my point.

    In some areas the cost of land and running buried cables to a tower is so high that the only way for it to be economically feasible is to charge so much for cell service that nobody would buy it or to take a loss. While technically you are correct in saying that Sprint is unwilling to put in a tower "at that profit level" when the "profit level" is clearly going to be negative, can you really blame them?

    In other areas - typically areas currently with no cell service at all - the cost of putting in a tower to serve a very small number of customers is cost-prohibitive unless the customers are willing to shell out mega-bucks just for service or unless it's a government mandate and refusing to comply is even more expensive in terms of fines.

    In other areas it's simply not possible because the landowners simply aren't interested in selling outright and they also simply aren't interested in selling an easement for a tower.

  21. Wireless spectrum is NOT unlimited on Sprint Begins Punishing Customers For FCC's Net Neutrality Rules · · Score: 1

    Wired spectrum is limited by the capacity of the wires and connections and it can typically be expanded by upgrading the wires and the connectors.

    On the other hand, mobile wireless can typically be improved by using different frequencies or technologies or by building more towers. Building more towers is not always possible and when it is, it is frequently not feasible. Using different frequencies or technologies means the entire industry and regulators have to buy in, which means a several-year delay at best.

    In the meantime, the wireless spectrum for a given carrier using a given cell tower really is, for all practical purposes, a limited resource.

    Now, if you are talking about their landline long-distance, yeah, you probably have a point. Unlike the old days, they probably almost never have to deny or downgrade a landline long-distance phone line due to capacity issues unless there is an outage somewhere that's radically cut into the available capacity.

  22. Unlimited data plans will go bye-bye on Sprint Begins Punishing Customers For FCC's Net Neutrality Rules · · Score: 1

    Truly unlimited data plans and "unlimited except for the fine print" data plans will go bye-bye for anything higher than "low end G3" (say, 256Kbps or less).

    They will be replaced with metered plans and plans that OVERTLY and PROMINENTLY either cut you off or throttle you to G2 or G3 speeds when you hit your allowance.

    You will also see more prominent announcements of "when things get congested, everyone gets throttled" with a clear-cut statement of how the congestion-mitigation-throttling will be done - will everyone's speed be cut proportionately so the congestion goes away? Will those whose "speed tier" is higher than X be reduced to X while those whose speed is already lower won't suffer?

    Why? Because the thing that gets companies in trouble with regulators is surprising the customer in a way that hurts the customer.

    Personally, I expect companies to start pushing plans based on combinations of MB or GB per hour or day and GB or TB per week or month, and whether you get "cut off" or simply throttled to some slow-ish speed like 10% of "normal" when you hit your limit for the hour/day/month. For family and corporate plans with shared data, parents and company-management will have and easy way to set lower limits and/or alarms on their kids'/employees' phones' usage.

    Why?

    Because non-technical people "get it" that heavy users should pay more, but they also expect their Internet to keep working at a usable if somewhat-slower-than-they-are-used-to speed even if their kids or a data-sucking app eats up their data plan.

    By the way, 30 days has 10,368,000 seconds. This means if you suck data down 24/7 for a month at an average rate of 0.8Mb/sec (0.1MB/sec), you will suck down over 1TB. If it's 10 times that, which many G4 and G5 phones can do under ideal network conditions, it will be over 10TB. Who would be doing this? Short of someone running a whole office over a cell-phone connection, not very many people. But even sucking down the equivalent of a DVD full of video (call it 8.5GB/DVD) every day would be 255GB/month, which is a lot more than average, and if you are sucking down 3 hours of 4K 120fps video every day, well, let's not even go there.

  23. For coding - use primitive tools first on The Tools Don't Get You the Job · · Score: 1

    When you are learning "Hello World" in almost any language, you should be able to use any arbitrary text editor and fire off the compiler/linker/etc. from a command line, run your program, and go from there.

    After you do this, then you can start playing with fancy tools like IDEs.

  24. Dice is deciding: cut-over or slew on June 30th Leap Second Could Trigger Unexpected Issues · · Score: 1

    Should they change the social media link back to "read more" all at once or should they do it a little bit at a time so that, for a few hours on the day they do the change-over, you will get to read a little bit of the article then go to a cut-down version of a social media site.

  25. Not really on Ask Slashdot: What's the Harm In a Default Setting For Div By Zero? · · Score: 1

    In a business setting, x/0 does not always equal zero.

    Sure, there are cases where it does, there are many cases where it does not.

    I'd much rather the system throw an exception so I can handle it as needed for my specific task.

    Now, what I would like, and what some environments provide, is a way for me to trap an exception and handle it myself. I've never had to trap "/0" but I assume it could be done if my program was suitably privileged.