In fact, an information theory that leaves out the issue of noise turns out to have no content.

To put it one way, a collection of Shakespeare's plays is richer than a phone book that uses the same number of letters; to put it another, the essence of information lies in the relationships among bits, not their sheer number.

As every bookie knows instinctively, a number such as reliability - a qualitative rather than a quantitative measure - is needed to make the valuation of information practically useful.

The smell of subjectivity clings to the mechanical definition of complexity as stubbornly as it sticks to the definition of information.

The solution of the Monty Hall problem hinges on the concept of information, and more specifically, on the relationship between added information and probability.

If quantum communication and quantum computation are to flourish, a new information theory will have to be developed.

We don't know what energy is, any more than we know what information is, but as a now robust scientific concept we can describe it in precise mathematical terms, and as a commodity we can measure, market, regulate and tax it.