Ringworld

One thing that struck me while reading this was how much the Next Generation episode “Relics” drew from this. In Relics it's an actual Dyson sphere not a ring, but a lot of similar issues and problems exist.

But that's only a sideline. I like Niven's aliens. They're believably alien and consistent. Not just humans with weird skin and a different culture.

I was struck with the importance of luck as a predictive value. It's almost magic. Niven does his best to worj through it logically of course, but it's really fascinating.