Is that a realistic scenario for the majority though?
Aren't most people going to either make a mental note and add it to the shopping list later, or just wash/wipe hands and add a note to the list on the fridge blotter/whiteboard etc.
It'll be a sad reflection on the evolution of cognitive thinking if the people believe that they have to drop everything, clean up and reorder cornflour the instant they run out.
> grabbing your phone, loading the app, searching for the product, and hitting "buy".
Considering that, as well as the other option of having a magical listening tube in the house, living in a small English village, I have the 'luxury' of grabbing my coat and walking about 400M to the local store, and apart from the minor health benefit, I could also stretch the operation into a dog walking session, bump into and talk to some friends on the way and get some fresh air. There's also the local pub (http://the-quaffer.blogspot.co.uk/2012/02/murrell-arms-barnh...). Alexa, pull me a pint of London Pride...
