Amazon is building a new store:
when you walk in, your phone beeps.
When you pick up a book and put it in your basket, your phone notices.
When you walk out of the store, your phone logs into your account in Amazon and buys the books in your basket.
That’s every Amazon store.
This will also come to every restaurant maybe.
Where will the cashiers go?
That is the question I am leaving you with.....