This ARTICLE .. from the TIMES of LONDON of all places.. talks about the Japanese investing a pretty small amount of money (a fraction of what our financial mess is costing) to create a practical Space Elevator. Like so many, this engineering idea always caught me as a lot more practical than blasting chemicals to create thrust. It's worth reading! This one engineering project could literally change the world...
Change the world... hmmm... I sense a sequel to "A Glint in Time" with this theme. After all, when we left our heroes at the end of the book they already had a presence in Japan .. "Honto! Desu-ne?"