Amazing episode. Creepy and disturbing, but amazing, and probably the best one ever produced. "Black Mirror" paints an unsettling future, which is closer to us than we think. The most disturbing thing, in my opinion, is how easy the technicians are able to accelerate the time for the clones, which are not really human, but react like ones: suffering, getting crazy, locked for the eternity in an egg, with the same shitty music running every second of their "life". Another interesting thing is the Facebook block in the real life, even used as a punishment for both the 2 characters, the first one can't see wife and daughter, the second one can't see anyone, and that's really distressing.