**2.2 Space-time conception and circular Time**

Einstein [3] conceptualized that the space-time domain is
continuous but not flat due to the influence of gravity. He hypothesized the
convention that space-time is curved/warped by the distribution of mass and
energy in it. Therefore, space and time do get affected by the events that
happen in the universe (force/gravity). Prior to Einstein's view, time was
represented mathematically to be a continuum in linear dimension by Newton,
Barrow, Leibnitz, Locke and Kant. Godel [4] further supported Einstein's space-time
curvature conception by proposing new solution to the following Einstein's
field equation of gravitation in one dimension:

Rik ~-8ikR = %™Puiuk + Agik

The solution proposed by Godel [4] refers to the following
assignment for various parameters in the above equation:

—— = %mcp, X = — = -4*KJC

a1 2a2

The sign of the cosmological constant X is the opposite of that
occurring in Einstein's static solution and corresponds to a positive pressure.
In other words, the equations of Einstein's theory of general relativity
allowed closed loops of proper time. These loops allow one to move continuously
in time until one arrives in the past conveying that one can meet one's old
younger self if one travels backward with time.