AI, ML, AR, VR - Are two-letter acronyms changing the world?

The world currently seems very full of two-letter acronyms, all surrounded by a huge amount of hype. But which will actually change the world, and which will turn out to be niche interests, best left to serious gamers or programmers? Read any kind of predictions article for 2018, and you are bound to find at least one two-letter acronym. There is, of course, considerable overlap between these four, and they can also be used in combination to produce new experiences for consumers or customers. But for the moment, let's keep them separate and consider how each one could be used in business, especially in retail, over the next few years to'change the world'.