I found this video interview of Roger Penrose by Andrea Morris insightful. If I gather the substance correctly, I understand that Roger Penrose says that computers can never be conscious, but I think he means by the definition a computer as a calculating machine, and therefore a calculating machine cannot be conscious. So if something becomes conscious it will not be a computer.
Now I know I'm going to get this bit wrong!
Roger said something about when the wave function collapses, this makes the object real right back to before it was in multiple positions. It's as if When the wave function collapses, the multiple objects become one as if they were always one. This apparently goes back through time, but actually doesn't go back through time? He said that the reaction times of athletes which appear incredibly fast could be due to the collapse of the wave function creating the object (the object becomes real) at an earlier time giving the impression of incredibly fast reflexes. No, I don't understand it!