not to be overly pendantic but events and messages mean pretty different things and have different applications. Same thing with queues and buses.

I suspect the author knows more about this than me but plays a little fast and loose in their explanations. I feel it's important to have disipline in our vocabulary so that people learning the material can participate in more advanced discussions as they grow.

That said, I really appreciate the overall content and using the context of games for broadly applicable concepts is a great way to promote them (and funny as generally commercial games have some of the loosest "structure" of any code I've seen).