"If you get it in your eyes it is also not good news, " he adds.

BBC: How toxic is Hungary's red sludge?

Vision breaks are not just important for your eyes - research at Cornell University in New York State has found that computer workers who take short breaks are more productive than those who don't take breaks.

BBC: Computer eye tests

Video is not like gasoline where you can watch your usage click in front of your eyes.

FORBES: The Netflix Effect: Results From A Revealing Study in Canada

In Brussels, it is fashionable to roll your eyes at these guarantees, which do not change anything about the treaty and address things that were never in the text in the first place.

ECONOMIST: European politics

At the risk of sounding like the nerd who cried wolf, I ask you to close your eyes and imagine what cheap technology and clever entrepreneurs around the world--not just in Silicon Valley--might do to your business model.

FORBES: Digital Rules