First off this is a documentary, and one that except for a lot of production trickery thrown in (speakers clothed in avatar animations, animated scenes, and background music) would be really boring since it's a series of interviews. A bunch of people discuss Simulation Hypothesis which contends that reality is a simulation run by higher order beings, including a 1977 speech by Philip K Dick (who's ref'ed alot in this) where he states "we're living in a computer programmed reality." Later, Elon Musk asserts there's only a one-in-billions chance that we're in the Base (or true) Reality. There are references to computer games and simulations, most notably Minecraft, though not Civilization or The Sims, as well as "The Matrix" films a quote from which this doc derives its title. The doc is interesting in a seminar kind of way, you get a broad overview of this topic from a variety of speakers so that's decent. But the most interesting and possibly the most important thing to bear in mind is something noted at the very beginning, that a college teacher of the narrator once noted that through the ages, we attempt to explain our brain and nervous system in the context of the highest level of technology known at the time. Thus, given photo-realistic computer games, simulations, and virtual reality you have many people attempting to explain reality in that context, apparently unaware that they're simply doing what everyone's done since our caveman ancestors. Personally, I think this topic would do much better as a short six-ep streaming series since it lends itself so well to animations and cut-scenes from current computer simulations and VR games.