Agent Smith, As not letting the password codes get into hands of the matrix seemed an important part of the movie, I think we may be looking at another matrix in Zion, but at this point I think we're meant to be confused. Also that bit about it being in the center of the Earth seems really wrong - I'm pretty sure the Earth isn't hollow. It could be a glitch in the plot, but I think we're being lead somewhere - and I'm sure that a sequel was on the creator of the movie's mind from the word go. "Worlds within worlds" or matrices within matrices ? In my defense of this idea they do mention a first matrix that didn't work out. Zion? BTW: When is "The Matrix II" supposed to come out? - TJ