Reflections on science, technology, and computing — leavened by personal experience


Over the past thirty years, I have asked scientists of varying distinction and age and across cultures and disciplines to explain the rationale for their intellectual passions. After some prodding and embarrassment, most tell a variant of the same story. It’s the shared tale of The Magic. I suspect you know it too.

Like superheroes, successful technologies also become invisible. As technologies mature, market penetration rises, cultural expectations shift and consumer knowledge of the underlying theory and practice generally decline.Today, most computer users know nothing of the halting problem, superscalar pipeline design or object oriented programming. This is success.

In many parts of the western world, the frenzy of holiday shopping has reached its crescendo. In the U.S., it began with Black Friday, the day immediately after U.S. Thanksgiving. Not only is holiday shopping a major component of retail profits, financial analysts also use such consumer spending as a barometer of possible economic recovery.…

How many electronic devices do you own? Here’s a simple experiment that will (quite literally) illuminate the truth. Some evening, after darkness has fallen, turn off all the lights in your house, walk from room to room and count the number of lighted power indicators, blinking LEDs and glowing screens. I suspect you will be…

Why didn’t we leave a high value target area, you might ask? The Washington Metro was closed, taxis were non-existent, there was a security cordon around the area, and it was too far to walk.