What on earth are you talking about? This unification is about apps, first of all, not the OS itself. Secondly, it’s only about sharing code-base between iOS apps and macOS apps, not interfaces. Mac apps will still look like actual Mac apps, with cursor and all. iPhone apps will still look like iPhone apps. This just…

Except this isn’t autonomous driving. It’s assistant driving. Basically it’s a glorified cruise-control. And it’s beta. You’re required to keep hands on steering wheel at all times. You’re also prompted with several warnings in order to be able to activate it in your settings. Oh and did I mention it’s beta?