It seems so strange to read these issues about blocking IO and the complicated ways to 'resolve' them (introduce an AMQP broker? really?) when you're used to as

It seems so strange to read these issues about blocking IO and the complicated ways to 'resolve' them (introduce an AMQP broker? really?) when you're used to asynchronicity. I'm used to writing in Twisted. Okay, so I fire up something, and I get a deferred. I'm not waiting for it to complete before I can do other things. None of this queuing nonsense. At the same time, I've heard tons of people complain about how async-everywhere complicates everything. Either they don't know what they're talking about, or it just complicates everything else (or the truth is somewhere in the middle).