Hello, 0BD11A0D, you wrote: BDA> the Previous big trend was , come in the stead primitive 3D. has been caused by the big growth of users. Computers normal people started to use for entertainment. Important here that they do it voluntary and at leisure so will not put many forces in mastering of new technologies. Language allowed to facilitate learning of new concepts them with known concepts from the physical world. BDA> present, strangely enough, it flat/text. Modern UI, iOS7 +, Android 5. Probably, reactionary flow after the previous interface. Now it is possible to consider the majority of users computer-competent. Language for mastering of programs is not necessary to them any more, they will faster master them, because already mastered in the past similar programs. Now it is a pity places under the scenery which are not playing the functional role. On the first place in design there is a content. Everything that hinders it - try to remove and hide. Especially in the conditions of the restricted area of displays (mobile phones, pads, notebooks). Plane design as that, is a normal spiral. Tridimentionality bored all, the plane design began to be perceived, as something fresh. Gradually tridimentionality starts to be forgotten and volume start to be perceived, as a novelty. Google Material Design it is a bright example of, how to plane design import volume dashes to introduce novelty. In my opinion Google Material Design it generally design from the future. Most likely it will be a development trend if the Apple does not invent that that in a revolutionary way the new. BDA> who that thinks, what comes of it in the stead? There are any candidates for design of new generation? In my opinion time of plane design yet did not transit. I would tell that it only starts to be spread. I think the nearest years 10 the plane design with separate elements 3d will reign. And there already it three-dimensional interfaces again can replace. Naturally not in that type in what they were in Windows XP or OS X 10.7. Absolute realness. That it was not clear - that it, the interface of the program or a photo of the onboard panel of the plane. Everyones and other dregs. Tracing of position of the device on gyroscopes and relocation of an imaginary source of lighting in an appropriate place (you turn phone and a shade from the button it is moved). Something like interfaces from toys. But only when people in mass forget about three-dimensional interfaces and it will seem a novelty. If now it to make - does not fly up. New devices like google glass can make revolution, allowing to import tridimentionality to interfaces at new level. When it will be possible to glance head driving for a modal window and to see that behind it it is allocated. When it will be possible to be focused by driving of pupils on different distances and to see the different information. I.e. when the third measurement in the interface gives an additional functional, instead of (unnecessary now) likeness to real objects. But it not and not tomorrow.