My MacBook keeps abruptly telling me that my startup disk is full. The last time I owned an Apple laptop, it lost patience with me and sank into an irreversible coma, taking my entire self-documented history with it. I finally made my way to the Apple store in Soho a couple of weeks ago to buy an external hard drive. But true to New York's perpetual inconvenience and my own hardware incompetence, the product refused to mount to my desktop when I got it home.

So, I returned to the store today.