[grondilu]

It's not so much as "should we?". I mean I don't want to put any moral assessment here. The truth is we don't quite know what will happen. Some of the scenarios are great, others are ugly or sad. Like for instance the idea that to reach happiness, mankind could use biochemical ways. To reach immortality and thus safety, we could chose claustration. That's the caricatural scenario where to make us "safe and happy", AI would lock us in jails with an abundant supply of heroin. A similar one is the one described in "The Metamorphosis of Prime Intellect"[1], which I like because it reminds me of a famous experiment that I find fascinating[2]

We don't know if changing ourselves would be for the better or the worse, but it looks that it will happen anyway and that will be consistent with the prediction that AI would cause the disappearance of Homo Sapiens, or at least its relegation to the status currently occupied by other mammals.

1. http://www.localroger.com/prime-intellect/

2. http://boingboing.net/2008/09/16/brain-implant-result.html)