What is your prediction for the future?

People always make predictions of what is the technology going to be in X years. Most of those are of course wrong, but we shall not worry about that at the moment :).

I think that in 20 years brain-computer interfaces are going to be a common thing. So, no more typing or clicking or touching.

What do you think is the technology that is a bit bonkers today that will be available in 20 years?