Sarah: Pops! I thought you were dead.
T1: No. Just upgraded.
T1: I'll be back.
T1: It is possible if he were exposed to a nexus point in the time flow when you were in the quantum field. ... A nexus point is an event in time of such importance that it gives rise to a vastly different future.
T1: I'm old, not obsolete.
Sarah: Bite me.
T1: That is a very immature response