You might have heard about Hashgraph - a breakthrough in distributed consensus algorithms. It has limitation up to 1k nodes per shard, a really low communication overhead (consensus almost comes for free) and unparalleled Async BFT guarantees.
The Go already have an implementation https://github.com/babbleio/babble, so maybe it’s time for Elixir/Erlang to have its own? This can bring message brokers like RabbitMQ, VergeMQ, EMQ on the completely other level.
Notice, that it’s patented in US, but not in Europe.