Don't you think there is big difference between moving files to some users' devices vs moving files to literally half a billion users with almost 100% uptime? N

Don't you think there is big difference between moving files to some users' devices vs moving files to literally half a billion users with almost 100% uptime? Not considering problems associated with the scale of Spotify and instantly dismissing the task of managing that as something trivial (or at least easier than your work) makes you sound arrogant.