Aways wondered how do you load balance a load balancer xD As in, how do you achieve high availability of the single point of failure: the load balancer itself.

For plebs, DNS round robin sounds good enough. I'm still curious about more advanced setups, like how is cloudflare DNS server 1.1.1.1 available "locally" everywhere in the world. No matter where you ping from, the latency is always very low (so in reality it's not a single server in a certain region). And of course it's always up.