Comment by kaba0

And to be honest, a handheld magic cube that fits in your pocket and can display anything and be interacted in any way really is as magical as it sounds. Plus it is a quite good camera as well.

I really think that smartphone design is close to the optimal sci-fi tech for humans, exactly due to it being handheld. We rely on vision and touch the most and I think it combines those well. I am almost sure that VR would even in theory get as popular as smartphones, all else being equal.