And as you bring these trends together, and as you think of what it means to take people who are profoundly deaf,
who can now begin to hear -- I mean, remember the evolution of hearing aids, right?
I mean, your grandparents had these great big cones, and then your parents had these odd boxes that would squawk at odd times during dinner, and now we have these little buds that nobody sees.
And now you have cochlear implants that go into people's heads and allow the deaf to begin to hear.
Now, they can't hear as well as you and I can. But, in 10 or 15 machine generations they will, and these are machine generations, not human generations.
And about two or three years after they can hear as well as you and I can, they'll be able to hear maybe how bats sing, or how whales talk, or how dogs talk, and other types of tonal scales.
They'll be able to focus their hearing, they'll be able to increase the sensitivity, decrease the sensitivity, do a series of things that we can't do.
And the same thing is happening in eyes. This is a group in Germany that's beginning to engineer eyes so that people who are blind can begin to see light and dark. Very primitive.
And then they'll be able to see shape. And then they'll be able to see color, and then they'll be able to see in definition, and one day, they'll see as well as you and I can.
And a couple of years after that, they'll be able to see in ultraviolet, they'll be able to see in infrared, they'll be able to focus their eyes, they'll be able to come into a microfocus.
They'll do stuff you and I can't do. All of these things are coming together,
and it's a particularly important thing to understand, as we worry about the flames of the present, to keep an eye on the future.