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Submission + - If Earth never had life, continents would be smaller (sciencemag.org) 1

sciencehabit writes: It may seem counterintuitive, but life on Earth, even with all the messy erosion it creates, keeps continents growing. Presenting here this week at the annual meeting of the European Geosciences Union, researchers say it's the erosion itself that makes the difference in continental size. Plant life, for example, can root its way through rock, breaking rocks into sediment. The sediments, like milk-dunked cookies, carry liquid water in their pores, which allows more water to be recycled back into Earth’s mantle. If not enough water is present in the mantle about 100 to 200 km deep to keep things flowing, continental production decreases. The authors built a planetary evolution model to show how these processes relate and found that if continental weathering and erosion rates decreased, at first the continents would remain large. But over time, if life never evolved on Earth, not enough water would make its way to the mantle to help produce more continental crust, and whatever continents there were would then shrink. Now, continents cover 40% of the planet. Without life, that coverage would shrink to 30%. In a more extreme case, if life never existed, the continents might only cover 10% of Earth.

Comment Re:In other words (Score 1) 312

Companies work within existing tax laws, and they have nothing to be ashamed by abiding by current tax laws. If the government offers you a tax break for buying a new home, of course you are going to take the tax break - even if you think the tax break is total bullshit.

That sounds a bit like walking past somebody lying dying on the street, pointing out that there is no law that obligates you to help them, and then saying that there is nothing to be ashamed of when you refuse to do so.

If the government actually sets up a tax break to incentivize something, there is nothing dishonest from doing so. The problem with corporate tax avoidance is that it usually involves structuring one type of transaction as if it were a completely different type of transaction to claim a tax break that was never anticipated. That is why you find companies doing nonsense like buying municipal sewer systems in Europe and leasing them back to the government for free in perpetuity.

Comment Re:It is unclear... (Score 1) 294

Or because as long as people are OK with that bit of intrusiveness every time they travel, they'll be more accepting of other restrictions on their freedom as well.

I think the other theory is more plausible. I don't think there is some massive conspiracy to increase government intrusion for its own sake, such that there are deliberate attempts to desensitize people to it. Don't get me wrong, there is plenty of intrusion all the same, but the motive tends to be more directly tied to somebody with a stake. They don't want to monitor what you download just to do it - they want to monitor it because they get bribes from Hollywood and Hollywood wants to stop movie downloading, etc.

Whenever something bad happens there is ALWAYS a blame game. Actions that were perfectly reasonable get questioned if they were somehow tied to the chain of events. If somebody blows up a bus full of kids while it is stopped at a traffic light, some idiot is going to propose that school buses should have flashing lights and be able to drive through red lights to reduce the opportunity to attack them with RPGs.

It seems like a 100% certainty that at some point in time terrorists will attack another US airliner. Security can make that very difficult, and maybe it will happen in 10 years, or maybe it will happen in 50 years, but sooner or later somebody will figure out a way to do it. At that point, everybody is going to be pointing fingers at anybody who voted no when the bill came up that would have instituted some control that would have prevented that particular incident. Never mind that there are countless areas where you could tighten security and if you tightened them all we'd be flying naked on planes with our baggage in separate planes after having all gone through full body cavity searches.

Comment Re:Lower taxes (Score 1) 312

You can call it "to the bottom" if you think you somehow benefit from high taxes. (I don't, because I work and pay taxes instead of sitting at home collecting a benefit check.)

Consider yourself lucky then. Many are born without the ability to work a single productive day in their life. Are you suggesting that they should be euthanized?

Comment Re:Lower taxes (Score 1) 312

Let food-buyers pay for USDA inspections and medicine-buyers pay for FDA.

Yeah, that makes sense. If the poor can't afford taxes, just let them not eat.

The problem with these kinds of schemes is that they tend to be incredibly regressive. You can't have socialism without fairly high tax rates on the parts of the economy that actually produce wealth.

Comment Re:The "spirit" of the law... (Score 1) 312

As Ms. Carnegie points out, if you want stuff taxed in your jurisdiction, change the law so that happens - dont wave the "spirit" of the law around as if it has any meaning other than a method of blackmail.

I think it would be far wiser to take the opposite approach.

The most effective form of enforcement is self-enforcement. You want to give companies incentive to just stick with boring accounting and to stop using schemes designed for tax avoidance. The best way to do that is not to create lots of well-defined rules to ban particular practices, because that means that companies can simply use different practices with relatively little risk. What you want to do is create a lot of uncertainty around whether a particular practice is legal or not. This means that companies are going to err on the side of caution, and minimize their use of tax avoidance schemes.

Any businessperson will tell you that the worst thing for a company is uncertainty in regulation. That means that in areas where you want business to grow, you want simple laws that get rid of the risk and allow companies to invest. On the other hand, in areas of the economy like derivatives and tax avoidance schemes that don't really create true value for the average citizen, you want there to be a LOT of uncertainty in risk. Make those CEOs find it impossible to sleep at night for fear that the FBI will kick down their doors while they're sleeping. Give them a reason to have their finances audited twice to make sure there isn't any activity that anybody might construe as a tax dodge. When somebody makes a minor mistake make their shareholders lose their retirement accounts. Then you'll see a return to simple accounting practices.

Comment Re:So - the fact that others are doing it makes it (Score 1) 312

In an ideal world, the electorate can deal with the immoral government, and the government can deal with the immoral company by making their actions illegal (if indeed it's the will of the people to crack down on immoral activity).

I'm not arguing that they should be punished for being immoral, but long term, they probably *should* expect the law to stop treating them so favourably.

Agree, but governments should really do these kinds of tax law fixes in a way that creates tremendous expenses for companies that have been gaming the system.

Otherwise they'll just keep finding another loophole.

It might even make sense to make tax code changes ex post facto for some period of time. That would create tremendous risks for anybody taking advantage of loopholes, and thus companies would just be boring and use traditional accounting.

Comment Re:So - the fact that others are doing it makes it (Score 1) 312

Any taxes paid by corporations are directly and immediately passed on to their customers anyway so what the hell is the difference?

You could argue the same thing of any tax. Sales taxes raise costs of living, which means workers won't live in the area unless employers pay more, which means their costs go up, which means prices go up, which raises the cost of living. Income taxes get passed on to employers (since they have to pay more so that people are still willing to work for them), that gets passed on to customers, and so on.

And yet, taxes still work and have worked for centuries. There might be a loop, but as long as people can keep a reasonable return on their work, they'll work. It isn't like the taxes add up to 150%.

Comment Re: So - the fact that others are doing it makes i (Score 1) 312

That's not true. Companies charge what the market can bear, and if they had lower taxes, they'd mostly just reap higher margins. Do you really think Apples prices would significantly rise if their tax burden went up? That's certainly not true of all markets.

Of course they'd raise their prices when their tax burden goes up and they'll cry foul "B-B-B-but it's the ebil gubbermint thats making us raise our prices" before doing another line of coke off a high end escort's arse with rolled up $100 note that is then used to light a cigar.

That depends greatly on the specifics, but it generally isn't true. Companies can't just substantially change prices without losing money. It may be more profitable to leave the prices alone and just make less money per sale, than to raise prices and watch the volume drop.

Comment Re:Legal, just morally dubious (Score 1) 312

You'd be amazed how much effort it takes to jump through all those hoops. I've seen ERP systems with fairly complex configurations to keep track of all the shell games.

When the transaction is A pays B, B ships product to A, the systems are pretty easy to build/maintain. When the transaction involves money and physical goods going through completely different paths it gets really messy staying on top of it all.

Companies do it because it still pays off, but as with most of the finance sector this stuff is just a drain on the economy. If we could get rid of it all we'd be much better off as a society.

Comment Re:Landing vs splashdown (Score 2) 342

I've heard this point before, with the obvious comparison of Shuttle wings. The counter is that wings are absolutely dead weight on liftoff, plus you've added an entirely new structural mode to the airframe. It has to have the correct structural strength for both vertical ascent and horizontal landing. Both wings and bimodal structure add weight.

Landing the F9 on it's tail, it's practically empty, a fraction of it's initial weight. I'd be interested in seeing the math between F9 and Shuttle, but I suspect SpaceX has done their homework on this.

Of course the science fiction idea of landing anything that can then take off is just that - science fiction. The LEM did it, but then again, only half of the LEM - the bottom was left behind.

Comment Re:Push technology is for phones, not computers (Score 1) 199

People close tabs and browsers for a reason. Because they're fucking *done* with the page. If you want something running, you leave it running.

Maybe they just want to have a chance at being able to read the page titles in the tab list, which is impossible when you have 47 tabs open?

I don't get the problem with opt-in push notifications any more than I get the problem with opt-in desktop notifications. They allow browser applications to do stuff that non-browser applications are used for all the time.

even on smartphones the first thing people ask me is to help them shut of the annoying notifications that all apps love to spam them with

You'll need to enable these for them to work, unlike on phones where they tend to be enabled by default. However, on android you can completely suppress the ability of an application to display notifications from its settings page.

Submission + - Accelerating Universe? Not So Fast (uanews.org)

Thorfinn.au writes: A UA-led team of astronomers found that the type of supernovae commonly used to measure distances in the universe fall into distinct populations not recognized before. The findings have implications for our understanding of how fast the universe has been expanding since the Big Bang.

Certain types of supernovae, or exploding stars, are more diverse than previously thought, a University of Arizona-led team of astronomers has discovered. The results, reported in two papers published in the Astrophysical Journal, have implications for big cosmological questions, such as how fast the universe has been expanding since the Big Bang.

Most importantly, the findings hint at the possibility that the acceleration of the expansion of the universe might not be quite as fast as textbooks say.

The team, led by UA astronomer Peter A. Milne, discovered that type Ia supernovae, which have been considered so uniform that cosmologists have used them as cosmic "beacons" to plumb the depths of the universe, actually fall into different populations. The findings are analogous to sampling a selection of 100-watt light bulbs at the hardware store and discovering that they vary in brightness.

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