Doom Sooner or Later
John Leslie, 5 June 1997
“... centuries, after which colonising the entire galaxy would be very much on the cards. Also that I took seriously Dyson’s vision of an infinitely prolonged future for our descendants. Even in something as concise as Imagined Worlds, a work of some two hundred pages with very few words per page, it is startling to find Dyson doing so little to explain this ... ”