You know how everything in our lives is slowly becoming smart? This goes for all the weapons too.
A couple years back the Navy asked congress for funding to demonstrate taking down an inbound saturation attack of 500+ missiles, probably as a deterrent to China. Congress declined.
When people say "hypersonic missiles" they mean missiles with a hypersonic glide phase, which have non-ballistic flight paths and can't generally be intercepted by anti-ballistic-missile countermeasures.
Sure. And carriers can simply launch their reusable hypersonic smart drone swarm shields and submerge underwater.
Not sure if you were serious or not, but:
It's hard to hide a strike group. Even civilians are tracking them these days with commercial sattelites:
https://www.forbes.com/sites/hisutton/2020/05/07/the-realiti...
US itself talks about sending out hundreds of cheapish drones in a swarm (5 km spacing) to seek out all naval assets over an area.
It would make sense for equal economies fighting.