This is an excellent write up, it explains the logic of macOS in a way that is seldom understood.
I learned something here and I've been using OS X/macOS since 2003, and Macs since System 7. Like the author, I
> just enabled the “Show all filename extensions” checkbox in Finder settings, thinking that hiding file extensions was some sort of paternalistic simplification.
It's much smarter than that. It's worth disabling the setting and perusing the Finder to get a sense of how it works.
This is an excellent write up, it explains the logic of macOS in a way that is seldom understood.
I learned something here and I've been using OS X/macOS since 2003, and Macs since System 7. Like the author, I
> just enabled the “Show all filename extensions” checkbox in Finder settings, thinking that hiding file extensions was some sort of paternalistic simplification.
It's much smarter than that. It's worth disabling the setting and perusing the Finder to get a sense of how it works.