Yes, there’s an escape velocity for the number of relays.

There needs to be a way to stand up lots of relays quickly if required. Also load balancing / routing could maybe help and maybe something like CDN where response time is used.

The thing is you are never going to get 100.00% complete data you might get 99.68% or something and the harder you push towards completeness the more brittle the network is.

So maybe the network is brittle by default but under stress it becomes more ductile? More resilient.

I think nostr will be much more emergent and less designed than what we have today.