Newspapers are dying, as any media observer could tell you. But I don’t get the strident call to “burn the boats,” as Cortés supposedly did when he conquered Mexico for Spain. Never mind that the legend never happened, this advice doesn’t make sense in light of the beliefs of the people saying it.

People are talking about a report that Twitter has a low proportion of “active” users. I saw a similar debate rage a few years ago around the definition of users of Second Life.

Amusingly (and presumptuously), today’s report claims to define “True Twitter users” as active. They say…