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“For a long time (including the entire development of touchDefense),
I was against the concept of Objective-C 2.0. Not that I hate
changes, but it seemed a bit arbitrary for Apple to take it on itself to
modify Objective-C. Certainly no other company has the same
level of investment in ObjC, but Apple doesn't have the same legal
stranglehold on ObjC that Microsoft has on .NET languages.
It just felt a bit wrong to me.
” source...