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dvasya comments on Rationality Quotes: June 2011 - Less Wrong
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'Dyson sphere' is a very broad term encompassing several distinct types of design, including very light ones.
Space elevator is awesome, but there exist much more clever alternative designs that have substantially lower requirements for material strength, as well as geographical positioning - this is also a huge issue with the original space elevator design. It is a beautiful idea, but that doesn't mean we should cling to it and ignore all other proposals :)
Any links to the research? I'd be interested in having a look :)
I started assembling links but then realized that Wikipedia is a good starting point, it has provides a nice summary of all the most notable designs: tethers, bolas, orbital rings, pneumatic towers, the Lofstrom Loop... Each has its own drawbacks, but the important thing is that they do not require nonexistent (even if theoretically possible) materials.
Clever ways to get to space are often covered at Next Big Future, including the author's own nuclear cannon proposal - this one actually literally follows Jules Verne :-)
Cool, thanks :)