It’s fascinating to me how I can be completely oblivious to something until someone points it out and then I see/hear it everywhere! This happens to me all the time with words, people, and so many other random things. When my co-worker (and resident Apple expert) first showed me a flyer she had designed with a symbol like the one below, I had absolutely no idea what it was.
She explained that it was a mobile barcode link that can be scanned by a smart phone to take you to the advertiser’s website. I wasn’t sure if people would get it because I would have sworn I had never seen one before. Then sure enough, after that moment it seemed like everywhere I looked, there they were.
As long as one doesn’t show up on my hand I’m good.