From bio-engineering to the wilder shores of physics, from cyberpunk to the electronic frontier. Scientists can bouce messages from the future back to the present but there is no certainty they contain the truth. A man obssessed with having a child does it all by himself with a DIY kit. A drug gives addicts the ability to dream of lives in parallel worlds. Lovers exchange bodies and minds.These are some of the ideas found in Egan's fiction.