So what is Twitter really for?

This morning’s Observer column:

In a way, it’s no surprise that Trump should have taken to Twitter because it has the right bandwidth for his thought processes. Technically, bandwidth is the range of frequencies that a particular communications channel can transmit. The wider the bandwidth, the more information the channel can handle, which is why analog phone lines were OK for voice communication but hopeless for relaying music. Smoke signals are one of the oldest communication channels devised by humans and they were very good for communicating danger or summoning people to gatherings. But as the cultural critic Neil Postman once observed, they were lousy for philosophical discussions. The bandwidth is too low.

Same goes for Twitter. It’s great for transmitting news tersely, which is why an increasing amount of breaking news comes via it (and not just warnings from Trump about supposedly imminent nuclear exchanges, either)…

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