Debating WWDC: Is Apple pushing forward or playing catchup?

Another WWDC keynote is in the books, and the books are bulging a little today because that was a huge keynote. Apple had to cut out all the fluff to pack everything into two hours: No musical guest, no third-party app demos, not even a funny opening video skit welcoming the developers to WWDC.
Instead we got more of the good stuff: tons of new features for users of macOS, iOS, tvOS, and watchOS, plus some long-awaited new capabilities for developers, who will be able to tap into Siri and Messa