Glyph is a smart guy and has been doing async code for a very long time (at least in computing terms). It would be wise to consider his arguments. I've done a

Glyph is a smart guy and has been doing async code for a very long time (at least in computing terms). It would be wise to consider his arguments. I've done a project making heavy use of Python 3's asyncio feature. It is much nicer than doing the same job with threads or call-backs, in my experience. I'd welcome nicer syntax but the current functionality seems to work well. I can't understand why someone would design a language in 2009 (Node.js) that uses callbacks. For simple programs it works but it doesn't take long to end up with an unmaintainable mess (in my experience).