Why Can't We Turn Back Time

How many times have you wished you could just go back in time to relive a really good memory just one more time? Unfortunately, time only moves forward. But now, one can stop wondering about the why and how regarding the way time moves; a group of theoretical physicists have a published a study which explains the concept time and its movement through the universe.

The study reexamines the "Arrow of Time" concept and provides an explanation as to how and why time only moves forward. In the study, the physicists have attempted to explore an alternate perspective of why time moves only in one direction through the universe.

Falvio Mercati, co-author and fellow scientist at the Perimeter Institute for Theoretical Physics in Ontario, said, "The universe is a structure whose complexity is growing. The universe is made up of big galaxies separated by vast voids. In the distant past, they were more clumped together. Our conjecture is that our perception of time is the result of a law that determines an irreversible growth of complexity."

The researchers have tried to explain the chaos and complexity that originated due to the Big Bang. The study also explains the importance of the role gravity plays in exacerbating the complexity of the universe and its growth. In fact, the study indicated that gravity is the root cause of creating order and structure, out of all the chaos in the universe.

The researchers intend to investigate further and collect more evidence from cosmological observations to better understand the complexities of the universe. Suffice it to say that the mysteries behind the structure of time and the universe may not be as confounding as it was before.