Memories… Fringe NBC, Tuesdays, 9/10 E/C “Safe” Written by David H. Goodman & Jason Cahill Directed by Michael Zinberg Just when you thought things couldn’t get any weirder. — Peter Bishop Now this is science fiction! I was absolutely thrilled by this week’s episode, which starts out with bank robbers using a machine we saw two episodes ago to walk through the walls of a bank. Supposedly, the device vibrates the molecules of the solid wall and steel vaulting in such a way that the human body can pass through it–but only during a brief window before the wall re-solidifies. One unfortunate robber…