Freeman Dyson - Interesting fellow.

[Ampgod]

Freeman Dyson
http://en.wikipedia.org/wiki/Freeman_Dyson

Dyson Sphere
http://en.wikipedia.org/wiki/Freeman_Dyson#Dyson_sphere

Dyson tree
http://en.wikipedia.org/wiki/Freeman_Dyson#Dyson_tree

Space colonies
http://en.wikipedia.org/wiki/Freeman_Dyson#Space_colonies