Not aimed at you, but... Misinterpreted? Sorry, but the definition of a protocol, particular in the context of Swift/Objective-C has been fixed for around a q

Not aimed at you, but... Misinterpreted? Sorry, but the definition of a protocol, particular in the context of Swift/Objective-C has been fixed for around a quarter of a century. And of course, those protocols were what he talked about in his presentation. If he meant something different, possibly he should have (a) picked a different term and (b) talked about something else at WWDC.