You've missed GATEWAY by FRED POHL!http://en.wikipedia.org/wiki/GatewayIt's one of my favorite stories, and I routinely tell people who don't read scifi to read it because it's just so interesting and so well written. Abusive comment hidden. (Show it anyway.)
http://en.wikipedia.org/wiki/Gateway
It's one of my favorite stories, and I routinely tell people who don't read scifi to read it because it's just so interesting and so well written.