Get the patents. Make a video. Prove the concept, then wait. The front end of Amazon that we're all familiar with — it's retail website — is just the tip of a massive internet juggernaut. Amazon also pretty much hosts the internet through its Amazon Web Services platform, also the most profitable part of the company. Now, Amazon wants you to buy your groceries at its coming chain of checkout-less locations, with the aim of getting as big a slice of a $25 trillion dollar pie as possible. And this is just the beginning.