_Photo by: john Applese on Unsplash_
How can you tell to a 70 years old senior or to a 7 years girl what Cryptocurrency is?
It was a deep in the middle of a coldy morning, I stared at my coffee for a while, Then I saw a girl in the front store, she's paying the goods she brought, and I was surprised, she never get her wallet, instead she got her smartwatch and pay through a QR…