@Idem: what's Matrix?

@Odisaodi: The Matrix is a system, Odisaodi. That system is our enemy. When you're inside, you look around, what do you see? Businessmen, teachers, lawyers, carpenters. The very minds of people we're trying to save, but until we do, these people are still a part of that system and that makes them our enemy. You have to understand that most of these people are not ready to be unplugged.

Odisaodi said:
@Idem: what's Matrix?

Without using any of the buzzwords that Matrix use themselves, it is basically an IRC server where a bunch of different clients can connect to it. It is not the same as an IRC server and you can do voice chat. But you can host your own server and have control over your privacy.