Highly recommended piece by Riccardo Mori:

What worries me, generally speaking, is the price we’ll have to pay in the process of bringing such technologies into the mainstream. Another thing that worries me is the state of our planet, and none of those technologies strikes me as an Earth-saving technology. There are days in which I feel particularly bitter, and the world looks like the Titanic, and technology like the orchestra that keeps playing sweet music in our ears while we all sink.