> Apple have proven they can change architecture on a whim now. They might have made it look easy, but switching architectures is still a huge engineering effo

> Apple have proven they can change architecture on a whim now. They might have made it look easy, but switching architectures is still a huge engineering effort which would have taken many, many years of planning and problem solving. (I'm actually more impressed at how they in-place-migrated every iDevice (like, a billion of them?) to the new APFS filesystem without any hassle to the end user).