Top critical review
2 people found this helpful
Interesting, but needs another edit.
on February 29, 2012
Interesting, but needs another edit. Seems hastily written. This idea of ranking possible civilizations according to their power output only, seems short-sighted to me. It's easy to talk about future (or extraterrestrial) civilizations powerful enough to juggle star clusters as easily as juggling tennis balls, but do astronomers ever see stars being juggled like that? No. Even if it were possible, maybe ETs have other interests besides power output. Kaku occasionally tosses in off-topic opinions that can be distracting and annoying. That said, he is an accomplished physicist who knows his stuff, and who is careful to avoid making outright false statements, and despite the above caveats, I found this an interesting and entertaining read. It is mainly about the feasibility of sci-fi techs like you see in shows like Star Trek. I gave it only 3 stars because it seems like it was written in a hurry and rushed to print.