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Comment vastly stronger symmetry effect is already known (Score 1) 120

As light passes by a sun it is subject to an asymmetric situation where the solar atmosphere is in a magnetice field closer to one pole than another, rotating and having a gradient both radially and with the azimuth. thus there's a strong symmetry breaking effect on this light. On average, for all light passing the sun it's an equal handed effect. But if your planet happens to be subject to light that cam from the left side of the sun versus the right, that light could have a net polarization.

this effect would likely be orders of magnitude greater than this weak force polarization effect.

Comment their theory isn't provable (Score 1) 120

All life we know about came from a single origin since all life is based on DNA, RNA and proteins. whatever the origin was it would have had left or right handed DNA and thus so did everything that followed. there's no reason to suppose the need for a bias for one or the other. one of them was going to win. it's like vhs and betamax.

Comment because half the people with iphones (Score 1) 264

don't need 16Megs. People on slashdot criticize apple for forcing you to buy features you don't need. Now you critize apple for making the base model something not geek worthy. they are offering what their customers need. Chances are the number of songs or photos you want to keep stored on your iphone at any time isn't geoing with time. and that's the majority of the space usage on most people's phones. With icloud and beats streaming that need is going to dramatically shrink as well. The only thing likely to really be a space hog is more tricked out games and things that use the greater pixels of the large phones. But as I said, at the moment it's photos and music that dominate the storage needs and those will be going down not up.

Comment Re:Alibaba's AliExpress store is ripe with fakes (Score 2, Interesting) 191

Yes alibaba is a theives market. Alibaba does little to root this out too. Moreover the entire china small items trade competiveness relys on the rediculous postage rates (low) that allows delivery in the US for a mere $1 worth of postage. Finally all the small vendors lie about the item in the postage to evade customs charges.

Amazon could make great noises and will.

On the other hand who owns Alibaba's 120 billion? Americans now. If the congress sicks their dogs on ALibaba it's the same as pilfering 120 billion from investors.

Meanwhile amazon has a PE nearing 1000 (who are they kidding?). AMazon's 1000 PE is justifed only on the basis of their growth rate not their earnings. If their growth is threatened (enter alibaba) their stock price crashes. if it crashes to a P/E ratio of 30 or 100 then 90% of the stockholder calue is whiped out. Gone. Not transfered. Gone.

So what's your poor bribed congressman to do. Act on alibaba's theivery to save Amazon, or not?

tough choice.

Alibaba's stock price over the next year will be a race between their growth in value, and the trees Amazon and E-bay fell in their path. I predict it goes up for 1/4 then down in response to regulatory pressure after the elections. THen eventually back up if their revenues grow,.

Comment Re:This won't amount to anything... (Score 1) 122

I was going to say the same thing. It's total rubbish in it's claims. Being just yet-another-linear combination of MiMo modes it provides no additional channel capacity. But there is the possibility that the demodulation/modulation methodology is easier to implement than other fast modulation schemes.

Comment Re:The definition of life? (Score 4, Interesting) 211

Since I seem to be dismissing that paper for trying to use thermodynamics to define the probability of a living system I wanted to quickly add that I am explicitly not dismission it. I'm dismissing the summary that conflating the definition of life with a lower bound on it's thermodynamic probability. Often times thermodynamic bounds are very useful in ruling out how something did not happen and to identify the high probability way something could have happened.

Take for example, the observation that most complex living systems are beautiful as well. Why are they beautiful to us. I think it is because they visually have organization. And the single most obvious facet of organization are symmetries at large scale. For example, atomically speaking your eyes are very far apart. Yet your body has this beautiful bilateral symmetry.

THe obvious question is whether symmetries in living systems occur because living systems select for symmetry because there is an evolutionary advantage to it or because of thermodynamics.

to see this take something simpler. The packing of seeds in a sunflower is optimal in some sense (fibonaci) yet one might believe there's a chance it's just a thermodynamic accident not a careful selection.

In fact drill down a little more and consider the fact that nearly all proteins in your body form homo dimers that are symmetric.

an interesting paper
http://www.ncbi.nlm.nih.gov/pu...

comes to the stunning conclusion that this symmetry is not from evolutionary selection! it's overwhelmingly improbable that function can arise from random collisions between proteins, and the only likely way two proteins can collide and form a low energy conformation that last long enough to perform a function is for collisions that form a symmetrical arrangement. Almost all other collisions wont last long enough for the dimer to perform a function (such as catalyzing production of a useful metabolite). Since Natural selection cannot operate on anything that doesn't do something to increase fitness this means that assymetric collisions are completely invisible to the organism. Therefore thermodynmics can rightfully claim that nearly all protein symmetry arrises simply from thermodynamic probability not from natural selection having a prefernce for symmetry. This is not to say that symmetry has no selectable characteristics. It's just that at the molecular level, those selectable characteristics are not required to explain the emergence of symmetry as we observe it. The frequency that we observe symmetric versus asymmetric homo dimers of proteins is exactly the frequency we would expect at random due to thermodynamics.

Thus the interesting thing about this new work in thermodynamics is it sets a lower bound on the conditions needed for life to emerge. It does not however define the probability of life emerging.

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