Animals actively enhance their access to information – thus chances of survival - via the sensory system. Because the sensory organs are information grabbing machines, interaction through sensory stimulus corresponds to energy-information exchange. Seeing further, smelling keener enables animals to gather nutrients (i.e., expanding time) and avoid physical dangers (i.e., time compression), an effective time machine, which is analogue to the relativity of time in general relativity. The fine regulation of the path, rhythm and extent of brain frequencies turn the brain into a complex, yet subtle system. However, the brain is much more than a finely-regulated circuit board.