A lot of technology that's out at the fringes will often be hyped up by a marketing department. It is the culinary equivalent of telling everyone how awesome the soup is going to taste just as the cook is returning from the grocery store with the unprepared, raw ingredients. We're edging closer to the "needs seasoning." There's always some company trying to sell something that doesn't really exist in a production form, and then 10 years or 20 years later, it is so in the background we don't even think of it anymore. You know how pricing works? Multiply by ten for every step from cost of raw materials to a commercial product in your hand? 10x to turn the raw materials in components. 10x to turn components in to a product. 10x to move the product to the store. 10x to sell it to you as an item you can use. Same kind of idea when it comes to technology research, but in terms of time. Six months of research becomes five years of development becomes ten years of commercialization becomes twenty years of "it's everywhere."