Despite its small stature, "if" occupies a central place both in everyday language and the philosophical lexicon. In allowing us to talk about hypothetical situations, "if" raises a host of thorny philosophical puzzles about language and logic. Addressing them requires tools from linguistics, logic, probability theory, and metaphysics. Justin Khoo uses these tools to navigate a...(展开全部)

Hal Clement, one of the all-time greats of science fiction, was defining hard science fiction before such distinctions were even being thought of. He once described his approach to writing: "[T]he rules must be quite simple. They are; for the reader of a science-fiction story, they consist of finding as many as possible of the author's statements or implications which conflict ...(展开全部)

The Best of Greg Egan contains twenty stories and novellas arranged in chronological order, and each of them is a brilliantly conceived, painstakingly developed gem. The book opens with “Learning to be Me,” about a society in which the organic human brain can be replaced by a miraculous piece of technology called “the jewel,” a “mock brain” that confers, among other things, a k...(展开全部)

The Best of Greg Egan contains twenty stories and novellas arranged in chronological order, and each of them is a brilliantly conceived, painstakingly developed gem. The book opens with “Learning to be Me,” about a society in which the organic human brain can be replaced by a miraculous piece of technology called “the jewel,” a “mock brain” that confers, among other things, a k...(展开全部)

在线阅读本书 Two boys. Two balloons. Each boy thinks his balloon is best. What do you think?

If You Come to Earth is a glorious guide to our home planet, and a call for us to take care of both Earth and each other.

This is an amazing collection of some of the best short fiction ever written in the SF genre, by an author acclaimed as 'the mastersinger of space opera' THE TIMES.With an introduction by noted SF critic Johnathan Strahan, this collection of twenty short stories, novellettes and novellas includes MINLA'S FLOWERS, SIGNAL TO NOISE, TROIKA, and seven previous uncollected stories, ...(展开全部)

Therapists do not and cannot give answers. Explore the true nature of the therapeutic relationship, and realize that the guru is no Buddha. He is just another human struggling. Understanding the shape of your own personal ills, will lead you on your journey to recovery. Sheldon Kopp has a realistic approach to altering one's destiny and accepting the responsibility that grows w...(展开全部)

Locked in the silence and darkness of your skull, your brain fashions the rich narratives of your reality and your identity. Join renowned neuroscientist David Eagleman for a journey into the questions at the mysterious heart of our existence. What is reality? Who are “you”? How do you make decisions? Why does your brain need other people? How is technology poised to change wha...(展开全部)