No chance.  Requires massive budget, and technology that isn't yet
available. Electromagnetic catapults have never achieved the high
velocities required, not to mention the mega-engineering to create a
track 100's of km long that is levitated >20km above the earth by a
huge magnetic field, and yet is light enough to accelerate a capsule
with GW of power.

A far better option is to put $10billion into developing Skylon
http://www.reactionengines.co.uk/downloads/SKYLON_User_%20Manual_rev1%5B3%5D.pdf
a fully reusable space plane that is air breathing to Mach 5 and you
could ultimately get launch costs down to $100/kg after 10-20 years of
gradual reliability improvement without requiring any magic or
unrealistic technology.  These guys are quite far along in their
development, and hope to be flying an engine demonstrator in next few
years.

SpaceX is also targeting a fully reusable system, and have a pretty
workable plan with fly-back boosters that will probably get launch
prices down to <$1000/kg in the next few years (and put their
competitors out of business barring those that are government
subsidised)

Alternatively gun launchers like http://quicklaunchinc.com/ or ram
acclerators 
http://www.tbfg.org/papers/Ram%20Accelerator%20Technical%20Risks%20ISDC07.pdf
can actually achieve the velocities required for investments of <$1
billion.  And could be scaled up to large sizes quite cheaply by
floating them in the Marianas trench, though accelerations are still
too high for humans they could drop orbital costs at least as low as
any other proposal.

2012/4/10 Jouni Valkonen <[email protected]>:
> How about $40/kg cargo into LEO? This tech could have vastly larger capasity
> and speed than with Space Elevator. And it is a little bit cheaper, well in
> reach of current engineering and does not require exotic nanomaterials that
> do not exist in required scale nowhere near in the future if never.
>
> Holiday in the stars: Space train could send four million people a year into
> orbit by 2032
>
> http://www.dailymail.co.uk/travel/article-2113668/Space-holidays-Space-train-send-million-people-year-orbit-2032.html
>
>
> —Jouni

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