Alien hunters 'should look for artificial intelligence'

BBC News - Alien hunters 'should look for artificial intelligence': "Both Dr Shostak and Dr Elliott concede that finding and decoding any eventual message from such alien thinking machines may prove more difficult than in the 'biological' case, but the idea does provide new directions to look.

Dr Shostak says that artificially intelligent alien life would be likely to migrate to places where both matter and energy - the only things he says would be of interest to the machines - would be in plentiful supply. That means the Seti hunt may need to focus its attentions near hot, young stars or even near the centres of galaxies.

'I think we could spend at least a few percent of our time... looking in the directions that are maybe not the most attractive in terms of biological intelligence but maybe where sentient machines are hanging out.'"