Considering how much of this is similar to one of my favourite Doctor Who stories - Natural History of Fear - this could have been a home run. We have a totalitarian society where the characters we know don't seem to be themselves, asking questions is forbidden, stories of the Doctor's adventures being bastardised in order to placate the masses, and characters confessing on loved ones. What made it even more promising is that whilst it had similar aspects to that Eighth Doctor story it seemed to be asking some different questions and exploring fresh ground. What if the type of person who defends their trolling as simply 'asking questions' or 'critical thinking' had the power to change the world? Would they ironically make a world where its wrong to ask questions? What if those that ask us to cast doubt and encourage us to look critically at power are in fact themselves the ones in power and benefit from the uncertainty they create. All fantastic elements of an episode i would love to see to its logical conclusion.

Unfortunately in usual RTD style most of this goes out of the window in order to accommodate universe threatening nonsense. I don't mean nonsense in an overly negative way, usually I'll enjoy the rollercoaster of RTD's bombastic finales for what they are, i just wish he didn't sacrifice interesting setups for them (The Giggle was another I felt did this).