Lol, fun is not the word I'd use to describe Black Mirror.
I honestly could only watch one episode per day because this show really hit me sometimes.
But yes, I think they wanted to do six episodes, like in the previous seasons, and then decided to split them so that season five can be released earlier. That would mean there will be a season six.
@24 I would love to know what that weakest episode your friend liked so much is. But I think I'll wait until RTT has finished watching. It's strange, but I always hate people telling me they didn't like an episode I have not watched myself yet. It kinda ruins it a little because then you always look out for the bad stuff when you finally see it.