We know that since the Renaissance, scientific knowledge has increased exponentially. The amount of knowledge has now grown to colossal proportions and doubles every fifteen years . The question of digesting scientific information is acute. Even today its scope is such that assimilation of the accumulated knowledge even within a fairly narrow discipline has become virtually a lifetime undertaking for a scientist. It is also necessary to realize that modern science is developing quite rapidly at the junctions of its branches, (...) which makes it necessary to know adjacent and often quite remote disciplines. (shrink)