From: Tony Williams 

Geo wrote:
> Or maybe nasa really does know what they are doing and no matter what you do
> it's still not easy to climb out of this deep gravity pit we live in? You
> can climb a mountain with no ropes and no gear, doesn't mean that's the best
> way to do it though..

I'm sure NASA does know what it's doing when it comes to rockets, but
they've got so much invested in that one solution that it might not make
sense for them to change track. An agency without all that history might
have a better chance of trying something new. Another huge factor is that
NASA can't afford to take risks and that's going to predispose them to go
with evolutionary changes to existing technology. IMO they're more
concerned about not failing than being wildly successful.

--
Tony

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