Now let us consider the microcosm. This is a level of reality that is far beyond our immediate perceptual cognition. These form the bulk of IPR . Yet, a myriad facets of the microcosm have been discovered and interpreted by twentieth century physics. The fundamental physics of the twentieth century has not only investigated, analysed, and exploited the physics of the microcosm, but it has gained many new insights into the nature of ultimate reality from its understanding of microcosmic phenomena.
Probabilistic evolution is intrinsic to microcosmic or quantum systems.
The historic debate between Albert Einstein and Niels Bohr on this question did not resolve the issue. This point of view makes us realise that in the course of our lives we become aware of and interact with the world on several different planes. Moreover, this also turns out to be a fruitful point of view in that it will not only enable us to consider other levels of reality, but also, in so doing, offer some solution to some of the age-old controversies relating to the interpretation of the world of experience. In this context, we loosely define chaos as a small causative factor, which leads to very significant unpredictable consequences. Examples of entities in this level of reality are clouds and biological systems.