On 4/6/2014 9:56 PM, LizR wrote:
On 7 April 2014 15:47, Stephen Paul King <[email protected]
<mailto:[email protected]>> wrote:
Hi Liz,
Why is there no interest in developing tech to get us off the planet? Why
is there
a retreat into a bunker mentality?
I wouldn't say there is no interest - but getting anyone or anything off the planet
isn't easy, to quote Robert Heinlein when you reach low Earth orbit you're half way to
anywhere in the solar system, which indicates how hard it is to get into even LEO. We
haven't got the capability to get large amounts of mass into space, nor have we got the
ability to survive outside the biosphere in great numbers and for long perionds. (We
really should have had a self-sufficient Moon colony by now, dammit...)
It's not only difficult and expensive, it's not very useful. In case of a asteroid
hitting Earth, it would be a way for the human race to survive for a while longer. But it
would be much cheaper and more effective to make Earth self-sufficient.
Brent
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