Nir Eyal

The market for religious apps is fiercely competitive; searching for 'bible' in the Apple App Store returns 5,185 results. But among all the choices, YouVersion's Bible, funded by LifeChurch.tv of Edmond, Oklahoma, seems to be the chosen one, ranking at the top of the list and boasting more than 641,000 reviews.

Don Draper-style advertising is really only available to the biggest brands out there. It's only commodity goods that use those kind of messages because they have to differentiate goods that are really hard to differentiate between - Shell gasoline versus Exxon, Coke versus Pepsi, Sprint versus T-Mobile, it's all the same thing!

Having a Congress with a more diverse educational and professional background would serve the country well. And given the budget challenges facing America today, we might benefit from a few more cold, calculating problem solvers, and fewer courtroom impresarios.

When I have a creative insight, there is a high. I think back in the day, I made music as much as I did because it made me feel so good. I think you could argue that there is a creative addiction - but, you know, the healthy kind.