The most striking aspect of Time Machine is its UI. When it debuted at WWDC 2006, it immediately faced criticism that it was just downright gimmicky. It is in fact gimmicky, but, I think, that’s actually a good thing in Time Machine’s particular and unique case. Apple has made something so effect-laden and so extraordinary that users want to see it in action — the fact that that something is backups, which, let’s face it, is effectively a chore, is a noteworthy achievement. Making backup software that people can’t wait to try, and which, once activated, just automatically kicks in and does its thing on a regular schedule, is like making people want to go ahead and sign up for life insurance.

The argument for Time Machine’s game-like UI isn’t that it’s more usable, but that more people will use it.