I should have written more carefully - I don't expect the _entire_ Internet to be archived by disorganized individuals. 

I expect groups will archive what is important to them, and keep it online as long as they care to. 
Not unlike Nostr relays - you might end up with some central ones that do a lot and everyone relies on. ...and then there is the dark forest of private relays and communities that you don't even know exist but their network is extremely valuable.  

 Sort of like monks in medieval times. Good luck getting access to those stashes of wisdom. 

 It's up to them if I get access (and at what cost). 
As it should be.