Please keep everything like I'm 5. I don't know computer science or programming. Please help me understand this ELI5 comment? I simplified names.
Bob opens a candy shop called BCS (Bob's Candy Shop).
He has no idea how taxes and all this adult stuff work so he asks his brother Charlie, a smart IT guy, to write him a magical SmartContract that cares about everything. [Question 1] He just needs a buyer to show the QR code Charlie gave him.
Alice comes by to buy some chocolate. She scans the QR code with her phone and sends the amount to the SmartContract Charlie made.
This contract automatically orders new chocolate and pays for it. The chocolate is already on its way to BCS. The taxes are calculated and stored in the SmartContract. This cares about paying the taxes and tells the taxman some other stuff in order to make taxman happy. The rest gets transferred to Bob's account. This all happens magically and faster as Bob can say "Thank you".
After the first day he buys a ticket for the film "Frozen" from the money he just earned. [Question 2] He only has to copy the address code which the cinema has on their website. He sends the amount of money and the name of the film to this address. The magical SmartContract of the cinema sends the ticket back.
Bob coincidentally meets Alice in the cinema. Both loved the film.
What does this mean? Buyer like Alice has QR Code. Why Charlie gave Bob QR code?
This is just QR Code and buying movie ticket online What do with Block Chain?
Where's Block Chain in this analogy? Does Blockchain suppose be the "magical SmartContract"?