From our Swindon Correspondent:
Last year almost every site operated by Google was taken offline after a fastly-type error. Each serves as a warning that the internet has become critical infrastructure – but has none of the protections given to most other infrastructure.
A large reason why you get all these services so cheaply and with so much functionality constantly added is that they aren’t critical infrastructure. Being 99.9% reliable is fine. No-one dies from lack of comical cat videos or tweets from Beyonce. So, risks can be taken. If Twitter had to be 99.9999% reliable, the cost would rocket up. You wouldn’t get rapid changes.
A country wanting to launch a military operation against a neighbour could, for example, launch massive cyberattacks to take out much of the internet and cause a large-scale distraction. Others might take down the internet for fun, or for profit.
No, they can’t, because “the internet” doesn’t work like that. You can’t “take down the internet” because it’s a bunch of connected computers. It’s decentralised, by design.