So that there's only one network connection delivering all the messages to apps, instead of 1,548 SSE/WS/XHR/GET(!) connections all ricocheting around and timin

So that there's only one network connection delivering all the messages to apps, instead of 1,548 SSE/WS/XHR/GET(!) connections all ricocheting around and timing out and getting reconnected and sending 200MB of pings every minute.