Entropy is not about speeds or positions of particles, the way temperature and pressure and volume are, but about our lack of information.

Entropy is not about speeds or positions of particles, the way temperature and pressure and volume are, but about our lack of information.

If the intensity of the material world is plotted along the horizontal axis, and the response of the human mind is on the vertical, the relation between the two is represented by the logarithmic curve. Could this rule provide a clue to the relationship between the objective measure of information, and our subjective perception of it?

An electron is real; a probability is not.

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

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.

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.