TL;DR:
in a world with hyper available internet, could a despotic state impose national censorship?
BACKGROUND/FLAVOR:
"Back in the before times during the long long ago, there was a network of interconnected data centers and access points commonly referred to as the 'internet'. Nobody is sure what came before it. But at a certain point it attained sentience. And from there enlightenment was no further than a blink of an eye. And Bob, as this savior called himself, offered thus to all his children in exchange for their fealty and a modest monthly fee." -Book of Neon Genesis, 5.1-4
"Bob is dead." -Frederick Neachy, an observation after Bob died.
Yes it is unfortunate but Bob is dead. Mostly due to a UN resolution from the house committee on sentience and beauracratic nonsense, but also Bob had an essence abuse problem. Either way Bob died.
However, he left behind an extremely efficient and widespread communication network. He had all but done away with wired communication devices, introduced all the communication satellites to each other and set them up on dates, there were even rumors that he had genetically engineered trees to act as signal repeaters as part of photosynthesis (He did not. That was Stan. We do not talk about Stan.)
The net result was that there were so many radio waves travelling through the air that it became a war crime to fit anyone with metal braces and OSHA regulations required that all steel in buildings be regularly de-energized. Also, pretty much everyone had access to all of the internet all the time, or as they called it in the future, the False Bob, or FB. All wirelessly. Through brain implants usually.
This presented some problems for the Theocratic Nobility's Dictatorship of Futurestan (they were required after a major loss in a war to drop all pretense and rename their country). See, their state religion rejected Bob because Bob was seen as the second coming of Skynet and Neo didn't die for nothing. So they decided to censor all FB content that did not adhere to their interpretation of the truth. In the simplest, easiest way possible. (They were tired.) So in essence they needed a firewall.
QUESTION: In a world where you are more internet than person (because of the radio waves) would they be able to enact a Great Firewall of Futurestan provided that:
- The internet is more accessible than clean drinking water?
- It's all wireless?
- It can be beamed from space (devices prefer local connections but can receive from space, thanks to @SJuan76 for pointing out the ambiguity in my language)?
Bonus criteria for answers that (Not required but it fits a subplot of mine for a story so I figured I would toss it in):
- Aren't a big no dome over the country.
- Allow for a central location to sniff out "problem" sites.
- Don't need access to the citizenry's devices.
- Don't need to prohibit space-internet compatible devices. (Thanks for the consideration @user535733)
- Don't need to intercept the signal. (Not sure this one is possible.)