  The central nervous system and particularly the brain was designed to control
the life cycle of a living being. With increasing size and sophistication, in
mammals, the brain became capable of exercising significant control over life.
In Homo Sapiens the brain became significantly powerful and capable of
comprehension beyond survival needs with visualisation, formal thought and long
term memory. Here we trace the rise of the powers of the brains of the Homo
Sapiens and its capability of three comprehending the three spatial dimensions
as well as time. By tracing the evolution of technology over the last
millennium and particularly the late arrival of astronomy to discuss the
evolution of the formal thinking process in humans. In a follow up paper we
will trace the extensive use of this new faculty by humans to comprehend the
working of the universe.
