One can only learn by teaching.

Behind it all is surely an idea so simple, so beautiful, that when we grasp it - in a decade, a century, or a millennium - we will all say to each other, how could it have been otherwise? How could we have been so stupid?

This is *our* Universe, our museum of wonder and beauty, our cathedral.

I like to say, when asked why I pursue science, that it is to satisfy my curiosity, that I am by nature a searcher trying to understand. If you haven't found something strange during the day, it hasn't been much of a day.

We are not only observers. We are participators. In some strange sense this is aparticipatory universe.

One can only learn by teaching.

It from bit symbolizes the idea that every item of the physical world has at bottom...an immaterial source and explanation...that all things physical are information-theoretic in origin and that this is a participatory universe.