A less conservative projection has an advanced drive developing ten times as much thrust for the same power -- this cuts the transit time to Mars to 28 days, an

A less conservative projection has an advanced drive developing ten times as much thrust for the same power -- this cuts the transit time to Mars to 28 days, and can generally fly around the solar system at will, a true Nasa dream machine. If we had this plus a reduction of cost-to-orbit by a couple orders of magnitude, say getting prices down to $10 per kilo? Space travel would actually become a thing -- something available to most people. And we could lower cost-to-orbit in a lot of proven ways, like using mass drivers for non-human orbital insertions. This is firmly in the "too good to be true" category right now, but hell, I'm a believer. Even if we're wrong, even if there's some experimentation error, science still wins. People are being energized, lots of imaginative scenarios about space travel are playing out across the net, and so on. This is a very good thing.