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...tactile holograms?

GIVE ME MY HOLODECK. Please, please be in my lifetime.

I wouldn't hold my breath. Touch screens were invented in, what, 70s? And it took somewhat 30+ years for it to be widely used by the average person.

assuming that we'll see change at the previous growth rate is silly if we get molecular engineering.

How old are you? I only wish I could have gone to siggraph this year