"Selfie" was added to the Oxford English Dictionary officially in 2013. That year, however, wasn't a popularity peak for humanity's fascination with taking pictures of ourselves. It was just the beginning.
If I was to compare the selfie to the economy during the Roaring '20s, I'd say that we're at peak ridiculousness at this very moment. People are carrying sticks with them to help their selfies.
These sticks aren't a fun, golly-gee tool. The selfie stick is a powerhouse for modern amateur photographers doing character studies of their face in different places and with different groups.
Using your phone's incredibly tiny lens to take pictures of yourself has one major flaw: Lighting.