The brain and, by implication, the Mind has been compared to the latest technological innovation in every generation. The computer metaphor is now in vogue. Computer hardware metaphors were replaced by software metaphors and, lately, by neuronal network metaphors. Such attempts to understand by comparison are common in every field of human knowledge. Architects and mathematicians have lately come up with the structural concept of "tensegrity" to explain the phenomenon of life. The tendency of humans to see patterns and structures everywhere even where there are none is well documented and probably has its survival value added. Another trend is...
a strong recursive streak should be evident in the operations of this magnificent contraption inside our heads.

The brain must be a learning, self organizing, entity.

Only if these six requirement are cumulatively met - can we say that the software metaphor is a strong one. Otherwise, we should be forced to neglect it in favour of a stronger one.

The brain is a paranoiac machine governed by Murphy"s Laws. It assumes the worst, prepares for it and takes no chances. Precariously balanced, materially delicate, in charge of life itself it can - and does - take no chances.