A lot has been written about the Internet bust. From my point of view, it's quite clear the Internet isn't a category; the Internet is a technological infrastructure that can be deployed to facilitate a disruptive business model or a sustaining business model.

Watching how customers actually use a product provides much more reliable information than can be gleaned from a verbal interview or a focus group.

How could Digital's collapse be so precipitous? It's because, in many ways, financial performance data is misleading. As you move up to the top of the market, you're getting rid of the less profitable products at the low end and adding business with more attractive margins at the high end. The rate of unit volume growth might be tapering off as you pursue these smaller markets, but your margins actually look better. So Wall Street rewards your stock price until you hit the ceiling.

Questions are places in your mind where answers fit. If you haven't asked the question, the answer has nowhere to go. It hits your mind and bounces right off. You have to ask the question - you have to want to know - in order to open up the space for the answer to fit.

Because we employ no professional preachers, it means that every sermon or lesson in church is given by a regular member - women and men, children and grandparents.

Steve Jobs and Apple taught us that profit is not the ultimate goal, but rather a consequence of something greater.

We are all trained to be data driven people, but no hard data exist about the future. Therefore, the only way to look into the future with any degree of accuracy is to use theory, statements of what causes what and why. If executives have the right theories in their heads, they can very quickly interpret market developments. They can identify what matters and why, and act accordingly. So we suggest decision-makers should start by gaining a deep understanding of the relevant collection of theories, and then be alert for signals that indicate certain types of developments.