The permissions problem depends on the ls -l knowledge. The disk full problem is another good example of fundamental knowledge that supports error recovery.
There’s a minimum level of knowledge required to solve problems on your own at the command line. Another 5 sessions would do it.
I imagine the GUI is similar but harder to quantify since spatial knowledge is more innate. I remember being 10 and fiddling with a computer UI without knowing anything. I figured out selecting and dragging on my own but not double clicking to open.
There’s a minimum level of knowledge required to solve problems on your own at the command line. Another 5 sessions would do it.
I imagine the GUI is similar but harder to quantify since spatial knowledge is more innate. I remember being 10 and fiddling with a computer UI without knowing anything. I figured out selecting and dragging on my own but not double clicking to open.