I have just finished a wonderful story by Michael Swanwick, "Slow Life". It is science fiction at its best with an original, very intriguing theme and excellent social commentary combined into an integrated whole that will keep you thinking for quite a while. I loved it so much that I gave it an entry to itself on my challenge list--though I got it as part of a larger volume.
It can be read free--with the author's permission--here:
You won't regret reading this piece!