As a layman, this doesn’t sound any different than what my (vague) picture of what the “great firewall” already is. My assumption is that the great firewall is generally about:
-preventing those inside China from access unapproved content from outside
-preventing those outside China from accessing unapproved content from inside China
-monitoring and controlling content inside China
Can anyone speak to how this could be notably different than what China has already been doing in that realm? Or correct my understanding of what we believe China already has in place?