Robotic Nation Evidence

New computers make grocery carts smarter

From the article:

New supermarket carts equipped with touch screens will guide you to the tomatoes or toothpicks, let you order deli meat without standing in line and keep a running tally of your purchases.

It is very easy to imagine, in the not-too-distant future, a version of this that talks, and is upselling you as you walk down the aisle. Not too far beyond that will be the device that can listen to you and understand you like any human being would, so you carry on a complete conversation with your grocery cart.