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User: lgw

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  1. Re:The same as ever: Android on Ask Slashdot: What Are the Most Stable Smartphones These Days? · · Score: 1

    The S5 mini is about the same price, which is what I'm looking at. But it won't do 4G data on T-Mobile, and fuck AT&T.

  2. Re:danger vs taste on Pepsi To Stop Using Aspartame · · Score: 1

    The human body is not a bomb calorimeter - not everything gets fully digested, and not everything affects "resting metabolism" equally. Only for endurance athletes is "exercise" the dominant way calories are burned - for those guys, they can eat anything as long as calories in don't get too high.

    For the rest of us, the glycemic index matters - for us couch potatoes it dominates.

    The glycemic index (GI) is a ranking of carbohydrates on a scale from 0 to 100 according to the extent to which they raise blood sugar levels after eating. Foods with a high GI are those which are rapidly digested and absorbed and result in marked fluctuations in blood sugar levels. Low-GI foods, by virtue of their slow digestion and absorption, produce gradual rises in blood sugar and insulin levels, and have proven benefits for health. Low GI diets have been shown to improve both glucose and lipid levels in people with diabetes (type 1 and type 2). They have benefits for weight control because they help control appetite and delay hunger. Low GI diets also reduce insulin levels and insulin resistance.

    Basically, most of the calories I burn are burnt by my "resting metabolism". The kind of food I eat therefore significantly changes the amount of calories my body burns. Eat too much at once, or eat too high on the glycemic index, and most people become noticable sleepy for a couple of hours - bad news for the calories your resting metabolism burns. Plus food like twinkies makes you hungry soon after as your blood sugar falls as quickly as it rose, challenging your willpower in a way that, e.g. oatmeal doesn't.

    For those of us with a sedentary lifestyle, getting a little regular exercise makes a huge impact on weight loss, far beyond the calories burned in the exercise itself, because it raises that resting metabolism for some time after the exercise, and some studies say it also makes your insulin response better (so less problem with Twinkies).

  3. Re:The same as ever: Android on Ask Slashdot: What Are the Most Stable Smartphones These Days? · · Score: 4, Interesting

    Most of the stuff you highlight can be handled by a feature phone, though, except reading books. I use my 6-year-old Android, doesn't seem to crash or need to reboot unless the battery is on empty (and shocking the battery still works pretty well after 6 years - will go 12+ hours between charges). You don't need anything fancy - what you want is something stable.

    I'm really struggling with what to get next - the screen on my phone has been cracked for a couple of years now, so I should probably replace it one of these days. But now it's all these damn giant phones that don't fit in my pockets, don't have replaceable batteries - what ever happened to cell phones getting smaller?

    When someone sends me a text or an email, there's no "he said - she said" disputes over what was said. Try doing that with your home phone.

    If you have that problem often enough to care, you need better friends, not a better phone!

  4. Re:Kludgy Mess Requires Kludgier Foundation on Mystery of the Coldest Spot In the CMB Solved · · Score: 2

    Inflation was cooked up to explain most of that after the fact, though, so it's unsurprising that it does. The fundamental problem with inflation is that too much is tunable. Penrose's cyclic cosmology explains all the same stuff, and at least has the decency to make some bizarre (and very likely false) predictions outside of the early universe.

    Theories of the very early universe that require new fields that there's a way to detect today are interesting. Certainly there are ideas to explain dark energy as an extension of inflation that fit that bill. But theories that propose a bunch of cool new physics that all conveniently vanished early on are a bit sketchy, at least until we can somehow make an equivalent of WMAP for the neutrino background radiation, and observe the very early universe directly. I hope I live to see that!

  5. Re:me dumb on Wormholes Untangle a Black Hole Paradox · · Score: 1

    If you can avoid traveling in normal space-time, then you've just potentially solved the problem entirely.

    That doesn't help in the least. It doesn't matter how you travel: two events, separated in space, that happen "at the same time" in my frame of reference don't do so in another. If I depart A and arrive at B "instantly" in some reference frame, then I have travelled backwards in time from another. There's no getting around that: we live in a relativistic universe.

  6. Re: me dumb on Wormholes Untangle a Black Hole Paradox · · Score: 1

    You seem to think the QM guys cooked up this really weird story while particularly high one night, then went looking for a way to make it fit the universe. It's the observations themselves that bring the weirdness. Sure, the universe at these scales far from human experience doesn't fit with our intuitions, but that shouldn't surprise, as our intuitions are based entirely on human experience. Sure the math is intricate, far from simple or elegant, but there's no actual reason to believe the universe is simple and elegant, other than it would be nice if it were so.

    Is this all some complex expression of some simpler, underlying truth that we just haven't found yet? Certainly everyone working in the field hopes so! But the horrible, crufty Standard Model just keeps making accurate predictions, and all the clever ideas of physicists to create a simpler underlying model that could explain everything we measure keep failing to do so.

  7. Re:me dumb on Wormholes Untangle a Black Hole Paradox · · Score: 1

    It seems like you're missing a key concept here: "simultaneous" depends on reference frame. If two events separated in space, A and B, happen at the same time in my reference frame, there's a reference frame in which A happens before B, and a reference frame in which B happens before A. There's no one true order of events.

    This causes no paradoxes in relativity, precisely because you can't send information, or cause an action, faster than the speed of light. The propagation delay between A and B ensures cause precedes effect in every reference frame, and the order of events can't quite shift enough to overcome that propagation delay.

    But moving FTL breaks all that. If I move "instantly" in my reference frame, then there's a frame in which I move back in time, and a frame in which I jump forward in time. I don't move back in time in my own reference frame, sure, but I really do in another. And if you're moving quickly relative to me, I can use that to relay a message from you to your past self - either by a series of accelerations between the frames, or by using a friend in your reference frame who can teleport as well.

    If I want to visit my own past self, I would need to teleport some significant distance, accelerate up to relativistic speed, again teleport a significant distance, then accelerate again to match location and speed with my former self - elaborate, but possible. Or, if I could travel a great distance, say 1 billion light years, "instantly", then I don't need much acceleration at all, just the difference in velocity the Earth achieves in 6 months as it makes half an orbit would do it.

  8. Re:me dumb on Wormholes Untangle a Black Hole Paradox · · Score: 1

    Well, there are several "kinds" of wormholes. In one, the distance really is 3 ticks, in every way that matters, and the fact that there's also a 10-tick path (which used to be the shortest path before the wormhole) means nothing, as there are an infinity of circuitous paths. But that's not this kind of wormhole.

    Me
    A1----------A2
    B1>>>>>>>>>>B2

    To see the problem, imagine 2 wormholes, A and B, each with widely separated endpoints. In my reference frame, the endpoints A1 and A2 are stationary - I'm standing by A1 and can send a message instantly to A2. The endpoints B1 and B2 are stationary relative to one another, but are moving close to c relative to A. In B's reference frame, my message goes back in time.

    If my message gets relayed A1-A2-B2-B1 just as the endpoints pass, I'll get it before I send it. In my reference frame, A1-A2 is instant, but B2-B1 goes back in time. In B's reference frame, A1-A2 goes back in time, and B2-B1 is instant. Either way, it's a causal mess.

    A simpler example: you can get a straightforward time machine simply by accelerating one end of a wormhole up to relativistic speed for a few years, and then bringing it back, parking it at rest near the other end. Like the twin who visits a distant star and returns, one end will be "younger" than the other. Now the wormhole moves you back (or forward) in time by a few years when you traverse it.

  9. Re:me dumb on Wormholes Untangle a Black Hole Paradox · · Score: 2

    OK, I tried to read your first sentence 3 times, and I still can't parse it, so I'm not sure what you're saying. Naturally, slower-than-light state transfer doesn't introduce paradox. FTL state transfer does allow inversion of cause and effect - the clear examples of this involve two pairs of wormholes, moving quickly relative to one another, which allows you go send a signal out through one pair and back through the other, and get the signal before you sent it.

  10. Re:me dumb on Wormholes Untangle a Black Hole Paradox · · Score: 2

    It's early days for this idea. This is theoretical physics, so it's usual for it to take a while for someone to come up with a proper experiment. Compelling, convincing experiments that have demonstrated the Bell inequalities (the EPR paradox) really started in 1998, decades after the theory was broadly accepted.

    This paper was more about black holes than quantum entanglement, and that stuff is harder still to test. It's the implications for QM that are really the exciting bit. It may well be that this is just a different explanation for the same phenomena, and so will remain "just theory" until we find some way to observe black holes closely. But if in fact it works out that this would be a modification to the mechanics of entanglement, someone will devise an experiment for it, as entanglement is still an area of interest for the experimental physicists.

  11. Re:Unity next on Ubuntu 15.04 Released, First Version To Feature systemd · · Score: 1

    xfce has a taskbar..

    Wow, cool! Time to check out out again. Thanks.

  12. Re:But I can still get piss drunk at the pub, righ on Irish Legislator Proposes Law That Would Make Annoying People Online a Crime · · Score: 1

    . I suppose you think we all still wear bowler hats and say 'what ho Jeeves'?

    I met someone in a bowler hat just last week. He was also wearing a kilt. And a bright purple shirt. Picture that combination for a moment.

    They key to unlocking the fashion mystery? Jury duty. Sure enough, he didn't get picked. Clearly he'd been living here for quite some time (long enough to be a citizen), so I can't hold him as representative of all the UK - I'm sure you don't all wear bright purple shirts.

  13. Re:Amazon has really been a stealth company on Amazon's Profits Are Floating On a Cloud (Computing) · · Score: 1

    The really do have an insane amount of cash - billions, years of operating expenses even if cashflow slowly tanked.

  14. Re:me dumb on Wormholes Untangle a Black Hole Paradox · · Score: 5, Informative

    I can't explain the mathematics Leonardo is using (best nickname ever), but I can explain the basic idea.

    Wormholes can connect two arbitrary points in spacetime - this allows FTL travel, but that means time travel, with raises all sorts of paradoxes. The current understanding of this style (ER bridge) of wormhole is that they're inherently unstable - the math allows them to form, but they'd collapse as soon as anything interacted with them.

    Quantum entanglement says that two entangled particles have this oddball relationship that one somehow knows that the other has bean "measured" (any real interaction between two particles is a "measurement" in QM, it's not some special thing), in a way that's seemingly faster than light, but can't be used to send information.

    These two ideas dovetail nicely - if quantum entanglement means the two particles are connected by a wormhole, which collapses the moment either is "measured" (i.e., any time they interact with anything new), then you have a way for that communication to happen FTL, an then the two particles are disconnected and no longer have any special relationship. You don't get time travel paradoxes, because it's the nature of entanglement that you can't use it to send data FTL even though the effect is FTL.

    It sounds neat, but that almost counts against you in QM. The key is whether the math works. Exciting if true, however.

  15. Re:Unity next on Ubuntu 15.04 Released, First Version To Feature systemd · · Score: 1

    I use both Ubuntu and Red Hat daily at work. I really don't like the current Ubuntu desktop - it seems inspired by good ideas, but it doesn't deliver them. Red Hat's very old school desktop is straightforward and intuitive, if limited and ugly. But I'll take limited and ugly and can get work done over the alternative! (This is also my argument against systemd, of course).

    I haven't seen XFCE in forever, but I remember it being really fast anf lightweight. XFCE with a taskbar would be my dream.

  16. Re:Amazon has really been a stealth company on Amazon's Profits Are Floating On a Cloud (Computing) · · Score: 1

    . I think there are very few companies, including profitable ones like Microsoft, that have that luxury.

    I think any company can do the same, as long as they convince their large investors they have some sort of long-term plan that justifies it. While stock prices are batted about by people chasing quarterly results, those speculators aren't going to evict the board of directors, they'll just sell and move on. It's the large, long-term investors, the pension funds and mutual funds and so on, who will make the effort to cut the head off a company if they think the current board/CEO are fools. As long as they believe your plan will work, you can take short-term losses if you have the cashflow, or can borrow.

    Microsoft is in a unique position that that have an insane amount of cash, can run at a loss for a decade without going under, and the long-term investors just cut the head off the company in favor of a long-term plan. They really have no excuse at all here.

  17. Re:And it's gonna rain on Amazon's Profits Are Floating On a Cloud (Computing) · · Score: 1

    Isn't AWS used for more than cloud storage and computing? It's also used for simple web hosting. Did they subtract the revenue from website hosting from that $1.5B figure.

    AWS includes far more services than I've ever heard of. "Cloud computing" is EC2, which you could use for web hosting once you grow large enough to need a full VM (or 1000). I'm sure theyalso have some web hosting product somewhere for personal-sized sites too. All of that, plus the storage and so on - everything "cloud" - is AWS (I know of their queueing service and their load balancer service, but I've only looked for the obvious stuff).

    The fact that it's collectively profitable despite the price wars should be a real wake-up call for anyone using "cloud" as a loss leader.

  18. Re:Dead until 2016 or 2020 anyway on Bloomberg Report Suggests Comcast & Time Warner Merger Dead · · Score: 1

    You do realize the real contribution from these companies are many millions, right? Except to the Clinton "charity" and a $300k speaker fees for Hillary, instead of on the books? (And it's not like the Clintons are especially corrupt here, compared to the rest, though they're more brazen than most about it.)

  19. Re:Dead until 2016 or 2020 anyway on Bloomberg Report Suggests Comcast & Time Warner Merger Dead · · Score: 2

    The opposition party has obstructed the president 10 times as much as his own party has obstructed him? You don't say.

    It's past time to stop caring about the "Democrat" or "Republican" labels! What matters is, on a critter by critter basis, which specific congresscritter is in the pockets of which specific corporations. Stop voting based on party, stop voting based on ridiculous emotional appeals about what sexual practice will be mandatory or forbidden, and pay attention to who owns the specific candidates. It's reasonably public, if we choose to care, and while every congresscritter may be owned by someone, there are plenty of corporate political agendas I don't give a fuck about (e.g., luxury taxes on yachts), and plenty that affect my life directly, and voting on that basis matters.
     

  20. Re:so....why? on Gen. Petraeus To Be Sentenced To Two Years Probation and Fine · · Score: 1

    I agree with OP. /. is it's own thing, not a general purpose news aggregation site. The world is saturated with those, and surely doesn't need another.

  21. Re:Dead until 2016 or 2020 anyway on Bloomberg Report Suggests Comcast & Time Warner Merger Dead · · Score: 3, Insightful

    Republians? Surely you jest. Take of the partisan hat and look at the actual data for Hillary Clinton, presumed Dem presidential candidate.

    Her top 10 career donors are mostly investment banks (all the big names are there), but Time Warner and Cablevision make the top 10.

    Will we get a GOP candidate not already in the pockets of investment banks and cable companies? I'm not holding my breath, but it's theoretically possible, unlike the Dem side which is already bought and paid for.

  22. Re:Maybe so but... on USGS: Oil and Gas Operations Could Trigger Large Earthquakes · · Score: 2

    No, he's certainly right in the long term. The only source of the energy needed for earthquakes is geological, and that power source (plates moving against each other) adds energy at a fixed rate (on human timescales). It's just a matter of when and how the energy is released. Triggering it early, when it otherwise wouldn't have caused an earthquake in our lifetimes, or perhaps in humanities lifetime as a species, that you can blame on someone, but eventually that stored power is going to be released.

  23. Re:...and adults too. on Bill To Require Vaccination of Children Advances In California · · Score: 1

    Anti-vaxxers are almost all upper-middle-class liberal moms. The saying is "make a heatmap of anti-vaxxers, stick a pin in the middle of a hotspot, and you've found a Whole Foods".

    It's not just the right that has crazy notions, you know. It's pretty much "humans".

  24. Re:...and adults too. on Bill To Require Vaccination of Children Advances In California · · Score: 3, Insightful

    Oh, there are plenty of things you must do as well, from the history of conscription, to jury duty, to paying taxes. Once it was common that you were required to bring your gun to church on Sunday just in case something needed killing. Your required to get the shots for your pets in most places. None of this stuff is crazy (well, bringing back the draft today would be, but only because technology has made it pointless, even harmful).

    We also, of course have crazy stuff like being required to buy health insurance and in some places upgrade existing structures to meet new codes. Not everything is a good tradeoff for liberty, but many things are.

  25. Re:...and adults too. on Bill To Require Vaccination of Children Advances In California · · Score: 1

    We already have cases of sex-selection abortions and forced abortions in America - your slippery slope is a rather flat one. But all of that is a distraction from the fact that the freedoms that you must give up to enter a society are those that either directly injure or recklessly endanger your community. Sort of like driving drunk, or firing a gun into the air in a city: the odds you'll actually kill someone are low, sure, but it's just that sort of needless risk that societies form in order to remove. Everything's a trade-off, and some trade-offs are pretty clear.