TK455': "Hi! We're TK455 and TK479 from the future."
TK455: "Isn't our encounter supposed to create a time paradox, the results of which could cause a chain reaction that would unravel the very fabric of the space time continuum, and destroy the entire universe?"
TK479': "No. It's not the same movie."
TK479: "Why is that guy looking like me?"
Part of the time-travel story arc.
For better comprehension, during the next days, the TK455 and TK479 who are coming from the future will be named TK455' and TK479'.