information—the one our brain uses to represent, think about and react to the outside world—cannot operate in the quantum domain, it is advisable to refrain from using it in our mental representation of what is happening “inside” a quantum system. Although the theoretical framework developed for quantum mechanics handles mathematical entities specifically attributed to a quantum system, the only truly *pragmatic* information it can provide relates to macroscopic effects on the environment (natural, or artificial as in a measurement instrument) with which the system interacts.

What is Pragmatic Information?
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We live in the Information Era. It is quite understandable that a term of such every-day usage as “information” remains largely undefined when used in the general scientific literature, despite the fact that philosophers, mathematicians, linguists, engineers, biologists and writers use this common term with quite different and distinct meanings. Physicists are accustomed to working with the mathematically well-founded concepts of Shannon (or statistical) and algorithmic information. These terms are used to designate objective, quantitative expressions of the *amount* of information in a message; the *gain* of information when alternatives are resolved; the *degree* of uncertainty; the *quality* of information; the minimum *number* of binary steps to identify or describe 