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I don't see how pyramids or other structures could be used for communication.

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I think he's suggesting that the idea of building pyramids spread through some form of communication, not that the pyramids themselves were used for communication.

I don't agree with that, myself -- a pyramid is a fairly simple shape, and could easily have occurred to different groups of people.

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We don't know actually what he is suggesting while your idea is correct one most probably (I tried to be funny actually:)).

As well I agree about pyramids being simple. Another problem with communication theory is that Mayans used different counting system.

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It's not only the shape but also the construction technique, very large stones cut with high precision in both egypt or south america http://en.wikipedia.org/wiki/Pumapunku

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If the technique can be thought up once, it can likely be thought up more than once. http://en.wikipedia.org/wiki/Multiple_discovery

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I don't share givan's belief, but I would note that this depends heavily on the complexity of the idea. If, for instance, manuscripts with identical detailed stories were found in two distant civilizations from the same time period, I would consider that evidence that the civilizations had interacted.

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Pumapunku was built thousands of years after the pyramids in egypt. Plenty of time for banging rocks together to determine which one is the harder and figuring out that using flat stones and sand is great for polishing.

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Cached version: http://webcache.googleusercontent.com/search?q=cache:j74EbmG...

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That implies increased security as well.

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Shooting large amounts of light into the sky does not improve security. Adequate street lighting does not require that much wasted light.

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I guess it is good that my city is aiming for 100% LED street lighting then :)

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Unless they're aiming that 100% LED street lighting where it won't wind up in the sky, I don't see how that'd make a difference. And street lighting isn't the sole source of light pollution - in many cities, buildings are lit from the outside at night with big floodlights pointing upwards. I'd imagine that has a fairly big effect on light pollution.

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Fwiw many cities are switching to fully shielded led street lights. They started doing this where I live (Cincinnati) and the change has been fairly drastic.

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Nope, that just means they can waste light while wasting less electricity :)

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If you're purchasing outdoor area or street LED lighting from any reputable OEM, they will comply with Dark Sky-friendly BUG (Backlight/Uplight/Glare) ratings.

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Not according to:

http://www.newyorker.com/magazine/2007/08/20/the-dark-side-2

(https://news.ycombinator.com/item?id=8687358)

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Do you have statistics for pork and beef. Red meat statistics is more interesting and relevant than poultry.

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Your comparison with smoking is completely unfair. The problem is that we have scientific proof that smoking tobacco causes lung cancer (the emphasis is on "causes"). The problem with nutritional science is that we only have correlation data (or at least it looks like so).

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I'm now reading "The Big Fat Surprise" (http://www.thebigfatsurprise.com/ and http://www.amazon.com/The-Big-Fat-Surprise-Healthy/dp/145162...). I have not read the whole book yet but if what is written in it is truth then there is no science I am expecting in lipid hypothesis and that's is very disappointing. I will double check some facts myself after reading this book but it is interesting. 1-star comments in amazon look valuable as well.

Just spent 20 minutes by following comments, blogs and found this:

http://www.foodpolitics.com/2014/03/is-saturated-fat-a-probl...

http://rawfoodsos.com/2010/07/07/the-china-study-fact-or-fal...

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Listen to Dr. Garth being interviewed by Rich Roll (starting at 13 min) to understand what this nutrition confusion is all about. https://soundcloud.com/richroll/rrp-050-the-rich-roll-podcas...

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I have listened to it. It was interesting but it was disappointing at some moments. It is interesting how conspiracy theories work both for and against his position (I will take it as irrelevant for discussion). It is interesting how some of his facts are poorly investigated. E.g. he mentioned EPIC (http://en.wikipedia.org/wiki/European_Prospective_Investigat...) but EPIC found only that regular consumption of PROCESSED meat increases the risk of cardiovascular diseases and death from cancer. There is no correlation between unprocessed meat and those health problems according to EPIC.

BTW I'm from Europe and sometimes I visit USA. Food in USA is usually bad and usually accompanied with bad eating behaviors. You can get good food in USA but it is expensive and hard to find. I can see how changing diet to vegan/vegetarian can improve health if you are living in USA.

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"My Tesla is using environment friendly electricity. It is slug powered"

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And it only takes 16.3 years to recharge!

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"user-replaceable battery". If your battery died then you can replace it for 75$ (+ taxes).

Of course if you need lasting phone that is your work tool used throughout the day and you need multiple batteries then this smartphone might be simply not the right tool for your job.

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For me it's not about multiple batteries, it's being able to change it after 2 years because it's the only part on the phone that degrades over time.

A battery in not $75 + taxes, it's more like $20. Granted, the Moto G and Moto E pricing somewhat make it more acceptable to change your phone every 2 years, but it's a trend that I don't like.

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If you don't like that then you can always vote with your wallet and buy something with replaceable battery then. I had 10 phones and only one battery problem (12 years ago). I simply bought new phone as old one became really outdated.

Or you don't like that because you see it as bigger problem? E.g. you think that it is environmental problem.

$75 + taxes includes battery price and its replacement (citing from here https://motorola-global-portal.custhelp.com/app/answers/prod...). You can do it yourself but it is not recommended and voids warranty.

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warranty expires long before or in the best case at about the same time that the battery needs replacing. battery replacements look a bit similar to buying ink cartridges for printers.

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... and no Android KitKat.

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Could you base your arguments with some facts? I work in international company and don't find Chinese in the top risk taking colleagues (Americans win big in this area). That's equally anecdotal like in your case but since it is different experience it would be interesting to hear where you experience comes from.

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