What is the next big thing after touch screens?

Recently I've been seeing post and articles including pictures of holograms and devices where a touch of a fingertip is not necessary for it work. The touch screen was a big step ahead from the previous button touching but how much more can technologists push? I would like to be an innovator but every time I think of an idea, there are obstacles preventing me from progressing. It would be great if a new technological means appeared that surpassed the touch screen. #technology #technologist #touch-screen

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