Moreover, there are huge numbers of poor citizens inadequately addressed by businesses traditionally focused on a relatively thin strata of wealthier individuals.

FORBES: Fundamental Changes in How Emerging Markets Innovate

Davison won't disclose how many people have signed up for Highlight to date, but our tests in London this week revealed a relatively thin pool of users. (For context, another fledgling rival, Banjo, hit 1 million users in April.) He appears to be some way off from the fabled "critical mass" at which a network becomes an attractive user destination.

CNN: With new mobile apps, no one's a stranger

On the surface, at least, The Sims is a surprisingly simple game, relatively thin on motion and Doomlike violence.

FORBES: Brave New World

Slane began as a relatively small concert in 1981 featuring Thin Lizzy supported by fledgling Dublin band U2, but it grew into a monster outdoor event with all the attendant problems.

BBC: Irish PM intervenes in U2 row

This 100-nanometer membrane, comprising the electrolyte and electrodes, has to be thin enough to allow ions to pass through it at a relatively low temperature (which, for ceramic fuel cells, lies in the range of 300 to 500 degrees Celsius).

FORBES: Harvard Researchers Develop Fuel Cell Chip