That probably means amateur involvement in space elevator projects will remain sparse, because it is now mostly a material science / nanoengineering problem. No

That probably means amateur involvement in space elevator projects will remain sparse, because it is now mostly a material science / nanoengineering problem. No super-high-speed adrenaline-pumped flying into the sky here. But once somebody gets up there (and stays up there), different story :D Alas it looks like a far-fetched idea. The hope is that fuel costs don't become prohibitive when it comes around.