Eventually this brain/computer interface stuff is going to become practical for millions of people. It’s not going to happen any time soon, but in the longer picture it might be inevitable.
I realize that talking about that now is a little like somebody in 1850 discussing the inevitability of motion pictures. But let’s go ahead and place ourselves in the position of those future people who will take such things for granted.
One outcome of a mature brain/computer interface is that we will all have total recall, should we so wish. Anything we have every seen or heard will be immediately available to us, if we would like to call it back to mind.
And there will probably be a very slick effort-free indexing system that will put to shame the clumsiness of typing keywords into Google. I wonder whether, in the larger scheme of things, this is going to be a good thing or a bad thing.