[danpalmer]

I think what the parent comment is implying is that at Google a lot of work has been put into making network calls feel as close to local function calls as possible, to the point that it’s possible to write synchronous code around those calls. There are a ton of caveats to this, but Google is probably one of the best in the world at doing this. There is some truly crazy stuff going on to make RPC latency so low.