Science fiction writers try to predict the future. Take a trend, extrapolate it, and there’s your future. Yet there are some things you’d never think of, even though they’re so obvious once the trend has arrived.
Selfies are like that.
Whoever would have picked a trend where people took photographs of themselves and made them available on social media?
I could probably have picked social media. Maybe not in exactly in the same format, but some kind of interaction and exchange of social information via virtual communities.
In retrospect, it’s logical. The proliferation of cameras on mobile phones, combined with easy access to upload them, combined with social media. It’s obvious, but only after it’s happened.