I know a thing or two about Objective-C. It’s not bragging. If you’re reading my blog, there’s a decent chance that I know more about Objective-C than you do. I have opinions about it. You should take them seriously even if you disagree. They’re founded on shipping a lot of code. I’ve shipped Cocoa software solo and in big teams, OS X and iOS, year-long release cycles and 30 hours to build a demo for Steve Jobs. I’ve been writing ObjC since 10.4 was the new hotness, before ARC, before properties, before Intel. There are many developers with much more experience, but even so, I know a thing or two about Objective-C.
I have no idea how to write Swift.
Neither does anyone else.
Not even Apple.