The Metamorphosis of Prime Intellect (Thinking machines,
brains-in-vats experience machine, a world without death)
This one is my favorite of the three
IMO "The Metamorphosis of Prime Intellect" is awful.
My main criticism is that it simply assumes the point it sets out to make (SPOILERS: basically that if you can't die and anything is possible, life would have no meaning). It really doesn't do anything to show why that'd be the case.
It also really fetishises extreme violence and, to a certain extent, incest. (My beef is not with the fact that it involves those things, but with the way that it handles them).
If you're looking for something with similar machine-intelligence, fairly limitless possibilities, and the like, I think Greg Egan's Diaspora is a far superior treatment.
http://www.amazon.com/Diaspora-Greg-Egan/dp/0575082097
Really, Mr. Asimov? If our mortality did not exist, it would be necessary to invent it? And is existing throughout time such a grand and limitless condition? Georg Cantor proved that there are always much greater infinities that we could not begin to approach, even if we would never die. So I am not convinced that it's a compelling puzzle to find our own limitations, even if we were unlimited in the dimension of time. That's still only one dimension.
Anyway, the story appears to be reproduced without permission in violation of copyright.
Three Worlds Collide (Metaethics, moral relativism, etc)
http://robinhanson.typepad.com/files/three-worlds-collide.pd...
The Metamorphosis of Prime Intellect (Thinking machines, brains-in-vats experience machine, a world without death) This one is my favorite of the three
http://localroger.com/prime-intellect/mopiall.html
The Last Question (Thinking machines, the end state of a universe full of technologically powerful beings)
http://filer.case.edu/dts8/thelastq.htm
Not as relevant as the previous three, but still brain tickling (and not as long):
Relevant scene from Star Trek: The Next Generation (Episode: The Measure of a Man) http://www.youtube.com/watch?v=3PMlDidyG_I
Let's Help Germinate This Seed http://www.thrivenotes.com/lets-help-germinate-this-seed/
The Egg http://www.galactanet.com/oneoff/theegg_mod.html