All of which helps clarify what’s so alarming about the contemporary online ‘attention economy’, of which we’ve heard so much in recent years: it’s essentially a giant machine for persuading you to make the wrong choices about what to do with your attention, and therefore with your finite life, by getting you to care about things you didn’t want to care about. And you have far too little control over your attention simply to decide, as if by fiat, that you’re not going to succumb to its temptations.