Quantum computation is… a distinctively new way of harnessing nature… It will be the first technology that allows useful tasks to be performed in collaboration between parallel universes. – David Deutsch
Humans may or may not have cosmic significance, and if they do, it will be by hitching a ride on the objective centrality of knowledge in the cosmic scheme of things. – David Deutsch
Time travel may be achieved one day, or it may not. But if it is, it should not require any fundamental change in world-view, at least for those who broadly share the world view I am presenting in this book. – David Deutsch
I myself believe that there will one day be time travel because when we find that something isnt forbidden by the over-arching laws of physics we usually eventually find a technological way of doing it. – David Deutsch