How to get to 10 trillion people in this solar system?

i beleive one day, likely more than one century away, perhaps
several, there will come a technology to break things down to their
component atoms, something like star trek replecators, but in
reverse. when that happens, it will only need energy to do so. until
then 90 to 95 percent will likely be the best that will be gotten. if
were still building, that 5 to 10 percent may be usable as sheilding.

--- In spacesettlers@yahoogroups.com, Darren wrote:
>
> Selvaraj,
>
> I have no doubt that a certain amount of recycling will be the
normal state
> of affairs in all habitats, some things will just be easier and
cheaper to
> recycle. The thing is I have seen some people who take the need for
100% or
> as near as possible to 100% recycling as an absolute given but the
problem
> is 100% isn't possible to start with and while getting to, say 90%
(and I am
> just pulling numbers out of thin air here, there may be near the
truth or
> not anywhere near it) may be cheap, the next 5% may cost as much as
the 90%
> before it and the next 4% may cost as much again and the next .5%
the same
> cost and the next .25% ..... And so on, my point being that to a
certain
> point, not 100%, it is cost effective to recycle but then the final
few
> percent, however much it is, will get more and more expensive as
you push
> towards 100% but never getting to it. This means that they will
need a
> stored reserve of some kind and a continuing input of new material
to make
> up for the inevitable losses. With a mature space civilisation you
might,
> one would hope certainly, have trade between habitats. This trade
might be
> just virtual, in the form of information or it might be actual in
the form
> of raw materials or finished goods. The movement of goods would be
dependant
> on the demand, the cost and duration of transport, perhaps even to
exchange
> rate, come to that, is there an exchange rate? If habitats are
isolated and
> far apart, there will be little or no actual trade between them,
however if
> there lots of them or they are near to each other, then actual
trade is a
> good likelihood. If you are shipping good to other habitats or
Earth or who
> know where, then you are going to have to replace the material that
goes
> out.
> Bottom line, I can see recycling being a normal part of life in a
habitat
> but only to the point where it cost effective. Topping up the
habitats
> reserves will also be a normal part of operations with
asteroid/comet mines