When I was growing up, my parents would apologize when we didn't have enough money for something. I'd always tell them that it was O.K. and that I had learned to work hard because of them.

I just think it's crazy that we don't think that the youth are valid. They're the ones who really know what's going on.

My mother struggled immensely with mental illness, and so did I. She grew up bipolar, but it was never diagnosed nor recognized. It was shrugged off like a 'symptom' of being female - of her being weak. I also experienced this growing up: I felt that the great pain I experienced was a dramatisation.

I was depressed at a very young age - mental illness runs in my family, especially on the female side.

To my great surprise, Twitter is not housed in a silver pod that orbits Earth at supersonic speeds, vacuuming up and then dispersing digital bits of worldwide chitchat; it's in a big, bland office building in downtown San Francisco, near a bowling alley and an Old Navy.

The incredible talent that has assembled at Hyperloop One is what is making it possible. I don't just think it's a technology story, I think it's a human story. It's those hearts and that passion of everyone and the commitment that is distorting reality and making this possible as fast as it is.

Technologists and futurists call the mashup of digital info and physical space 'blended reality.'

Telecom companies are doing very, very well. And the internet economy is doing very, very well.