It has to be said, though, that sometimes the public does not know WHAT they want, before they actually see a working efficient product. I mean, just look at th

It has to be said, though, that sometimes the public does not know WHAT they want, before they actually see a working efficient product. I mean, just look at the VR devices picture in the article. If the only info execs ever had was that, VRs would have never arrived to the market. The critical question is obviously: can you make such a good product that the public actually changes its mind?!