CHAPTER 20 Seated at his usual table in the café, Professor De Grecis sipped his coffee and meanwhile looked at Claude sideways. -I know, don't say anything. -Professor, I'm saying anything. -I it already, I was wrong, I didn't have to move the ball, I sent the system into a tailspin. Do you think it can be fixed? -We have to try. Let's go back to the laboratory this evening, to see what can be done. -Claude, I'm sorry. It's true, you warned me, you told me not to ... it was stronger than me. I had to try to change the system, it was an irrepressible impulse. I swear, I won't do it again. I hope I haven't ruined your work. -I don't think so. I think we can recover the previous screen. Either way we can't know until we try.- -The fact is, dear boy, this thing is taking me over. It is