Rand Simberg offers an alternative vision for NASA in a New Atlantis piece: "A Space Program for the Rest of Us."
Meanwhile, researchers at York University in Toronto have come up with an alternative design for a "beanstalk" to space, and are busy patenting it in partnership with space firm Thoth Technology Inc. They also published a related paper about it in Acta Astronautica. From a York U. page:
"Constructed from Kevlar, the free-standing structure would use pneumatically-inflated sections pressurized with lightweight gas such as hydrogen or helium, to actively stabilize itself and allow for flexibility. A series of platforms or pods, supported by the elevator, would be used to launch payloads into Earth's orbit.... Stacks of pods containing control and stabilization machinery are embedded in its core structure, and then pulled out and extended vertically via a system of rollers. The structure's position would be maintained by an active control system that corrects its centre of gravity using methods such as pressure balancing and gyroscopic stabilization. The system would also counter the forces of nature...."
Looks like the spammers a/o spambots are with us again, see link in above post.
I've noticed this new breed of spambots that appear to use some keyword-driven "intelligence" and that actually post something that is almost relevant.
Who knows? If they get good enough, you could have a whole comment thread of spambots posting to each other. It would be an interesting "wild" Turing Test.
In any case, on the actual post, it's clear that we need some "space infrastructure" focused on lift. If space elevators or something like them could be built, it would be insanely cool. Until then, I like Rand Simberg's idea, which is basically to have NASA work to encourage orbiting gas stations that could be fueled by getting fuel into orbit using non-human-rated super-cheap lifting tech. My personal fave is Big Honkin' Space Guns! which have all sorts of useful zombie apocalypse apps as well.