Why on Earth would politicians sign on to that? China, for instance, would just go "Ok we're blocking web4 entirely then. Communicate with us over censorable protocols or not at all."

Technology shapes policy, but policy is always the one calling the shots.

That would be cool; but it would go against not just China and Russia, but against any government. Can't turn off Isis beheadings, pedophiles, scammers, bullies, copyright infringers, ideological intolerables (who can be homophobes in some countries and homosexuals in others), and the list goes on and on. Judging by the prevailing sentiment of modern societies, they wouldn't like this. And governments most certainly won't.

> What if "Web4" made it impossible to turn off a specific portion of content without turning all of Web4 off.

I'm joking a bit.. but my first thought is: ad companies would love it, if I couldn't turn off ads.

If it came down to a choice between allowing cp, and/or widespread copyright violation, then they might do just that.

Some autocrats would happily shut down the internet because someone hurt their feelings.