Orbits may not be important to this calculation, but just doing some quick head 
math, I believe large skyscrapers could already have close to this 
concentration of addresses, if you reduce them down to flat earth surface area. 
 The point here is that breaking out the math based on the surface area of the 
earth is silly, as we do not utilize the surface of the earth in a flat 
manner... 

Davis Beeman 


> On Mon, Sep 17, 2012 at 11:27:04AM -0700, Owen DeLong wrote:
> 
>> What technology are you planning to deploy that will consume more than 2 
>> addresses per square cm?
> 
> Easy. Think volume (as in: orbit), and think um^3 for a functional 
> computers ;)

I meant real-world application.

Orbits are limited due to the required combination of speed and altitude. There 
are a limited number of achievable altitudes and collision avoidance also 
creates interesting problems in time-slotting for orbits which are not 
geostationary.

Geostationary orbits are currently limited to one object per degree of earth 
surface, and even at 4x that, you could give every satellite a /48 and still 
not burn through a /32.

Owen



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