http://en.wikipedia.org/wiki/Ship_of_theseus
http://en.wikipedia.org/wiki/Second-order_simulacra
here's the pdf about that moive
http://giama.files.wordpress.com/2008/02/the-philosophy-of-time-travel.pdf
In relation to the first two links.
http://en.wikipedia.org/wiki/Ghost_in_the_Shell:_Stand_Alone_Complex
http://en.wikipedia.org/wiki/Ghost_in_the_Shell_(philosophy)
Enjoy your headache!! :) GITS Ftw
A horse and a man, above below, One has a plan, but both must go.
Mile after mile, above beneath, One has a smile and one has teeth.
Though the man above might say hello, Expect no love from the beast below.