Earlier quoted context omitted.
Agreed, the folder metaphor works as its a direct visualization of the hierarchy of the computer.
I remember what Yahoo! was originally like: a nice, hierarchical categorization of websites. That was great when there were 1,000 websites. Maybe even okay for 10,000. Google quickly became an obviously superior approach. Back when Yahoo! was a categorized directory of sites, my computer had probably 1GB of storage. I didn't have a digital camera or many thousands of email messages. I didn't have as many documents th…
a. Hard to access the data outside the single ui
b. Performance of data import / export trails raw folders / file systems
c. Hard to figure out how to atomically backup the content in an incremental way.
d. No programmatic access.