[nawitus]

Are you saying it should be single-stage-to-orbit? That's currently technologically nearly impossible, even if the rocket doesn't need to land back to Earth.

[nanofortnight]

Not as technologically impossible as you might think: http://www.reactionengines.co.uk/space_skylon.html

[tomelders]

I really don't understand why Skylon isn't getting more coverage.