• The root of the dilemma is the fact that all of the fundamental laws of physics - such as Einstein’s special and general relativity and Newton’s gravitation - work just as well if time is flowing forwards or backwards
  • Most physicists generally accept that this is why time moves forward - because at the birth of our Universe everything was extremely ordered, and so the direction of time is the same as the direction of increasing entropy
  • The new study suggests it may in fact be gravity, not thermodynamics, that controls the direction of time’s arrow.

Share This Article