I argue it's a failure to continue teaching something that humans do not and will not understand, and arguably also do not want in the first place. Computers f

I argue it's a failure to continue teaching something that humans do not and will not understand, and arguably also do not want in the first place. Computers for most people are just another household appliance or tool of their trade. They use computers to achieve certain tasks and they don't have time nor interest to figure out the details of how. They want the results, not the process. Abstraction of the file system is a step in the right direction, even if it rustles the jimmies of nerds and beards everywhere.